Mestel Safety OCEAN REEF Primary 2nd stage User manual

Primary 2nd stage
OWNER’S MANUAL

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Primary 2nd stages - OWNER’S MANUAL
1 - INTRODUCTION
2 - GENERAL WARNINGS / OWNER’S AND USER RESPONSIBILITIES
3 - WARNINGS /REMINDERS BEFORE THE DIVE
4 - NITROX
5 - GLOSSARY
6 - PRIMARY 2ND STAGE
7 - BEFORE DIVING
8 - DURING A DIVE
9 - AFTER DIVING/POST DIVE PROCEDURES
10 - MAINTENANCE, CLEANING, DISINFECTION, CARE AND STORAGE
11 - TROUBLESHOOTING - EMERGENCY PROCEDURE
12 - WARRANTY
TABLE OF CONTENTS
3
4
7
8
9
10
11
12
13
14
16
17

Primary 2nd stage Owner’s Manual rel. 1.0 3
#UNDERWATERNATURALLY
For more than 70 years, OCEAN REEF has been involved in the underwater diving industry. We have
contributed much to this industry, from ns and snorkels to the most modern systems of underwater
communication. Through the spirit of intrepid pioneers, brilliant inventors, passionate divers, and dynamic
entrepreneurs, OCEAN REEF has been able to turn dreams into reality in the underwater world.
1 - INTRODUCTION
The Primary 2nd Stage must be used for underwater diving and maintained in accordance with the
instructions reported in this manual related to the use, the limitations and the maintenance. The use of
the primary 2nd stage implies the knowledge, understanding and the compliance to the present owner’s
manual. Incorrect use, use of unsuitable spare parts, alteration of the equipment or bad maintenance
and storage are dangerous for health and safety of the user and invalidates the warranty, exonerating the
Manufacturer from all liabilities. For everything which is not mentioned in the present manual, the general
conditions of sales and warranty apply.
It has to be stressed that any Personal Protective Equipment (PPE) for respiratory protection, such as the
primary 2nd stage, must always be used by specically trained people, perfectly aware of its applications
limits.
The Manufacturer has carefully worded and edited this owner’s manual. However, in no event the
Manufacturer will be responsible for any damage caused by text misunderstanding, misprints and/or
incompleteness.
The Manufacturer will not accept liabilities for any damage caused by:
• Insufcient, incorrect and improper maintenance, not following the plan described in this manual
• Absence of periodic tests and checks of the 2nd stage, not following the plan described in this manual
• Incorrect and improper use of both the Primary 2nd stage and each of its components
• Use of non original spare parts
• Not observance of prescriptions collected in the owner’s manual
• Alterations and/or modications of both the Primary 2nd stage and each of its components
In the above mentioned situation, being potentially dangerous to the health and life of the users, the
manufacturer is released of any responsibility and the warranty is nullied.
The Manufacturer is certied ISO 9001:2015 (https://diving.oceanreefgroup.com/support/#ISO_CC).
If you lose this manual or if you should require more copies, it is possible to download at diving.
oceanreefgroup.com/support/ or contact the Manufacturer: Mestel Safety SRL, Via Arvigo 2,
16010 Sant’Olcese (GE), IT. Phone: [phone]. E-mail: [email protected].
Website: diving.oceanreefgroup.com

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A WARNING indicates a procedure or situation that, if not avoided, could result in serious injury
or death to the user.
A CAUTION indicates any situation or technique that could cause damage to the product, and
could subsequently result in injury to the user.
A NOTE is used to emphasize important points, tips, and reminders.
Before using this product, you must have successfully received training and certication in
the technique of SCUBA diving from a recognized certication agency (or any U.S. Military or
government operated diving school). Use of this equipment by a person who is not certied by a
recognized agency shall render all warranties, express or implied, null and void.
WARNINGS, CAUTIONS, NOTES LEGEND
Pay special attention to information provided in warnings, cautions, and notes, that is accompanied by
these symbols:
2 - GENERAL WARNINGS / OWNER’S AND USER RESPONSIBILITIES
High pressure gas systems must be handled with care. Carefully read and follow these instructions
concerning OCEAN REEF SCUBA products equipment.
Use of SCUBA equipment by uncertied or untrained persons is dangerous and damage to high
pressure gas system components may result in serious injury or death.
If the instructions provided in the manual are unclear or difcult to understand, please contact OCEAN REEF
at [email protected] before using the equipment or attempting any repairs.
IMPORTANT
The content of this manual is based upon the latest information available at the time of going to print.
OCEAN REEF reserves the right to modify any products, processes and manufacturing techniques at any
time. It is the technicians’ responsibility to acquire the latest information and parts from OCEAN REEF for
service and repairs to be performed.
OCEAN REEF highly recommends that you practice in a pool before using your product in
open water. Diving in cold water requires special equipment and techniques. Before diving
in cold water we strongly recommend you obtain adequate training from a recognized
training agency.EN 250: 2014 norm denes “cold waters” as those having a temperature lower
than 10°C (50 °F) and requires that regulators certied for use in such conditions must be tested
and approved to work properly in temperatures of 4°C (39 °F).
This instruction manual does not replace a diving course.
Carefully read this instruction manual before use, and keep it for future reference.

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#UNDERWATERNATURALLY
In order to maintain the warranty, factory prescribed service for the products must be performed
at least once annually by a factory trained OCEAN REEF Service Technician who is employed by
an Authorized OCEAN REEF Dealer and whom keeps proper maintenance records. Repair, service,
disassembly, or rst stage adjustment must not be attempted by persons who are not factory
trained and authorized by OCEAN REEF.
For details, contact an authorized OCEAN REEF dealer at: https://diving.oceanreefgroup.com/
shop-dealers/
All users of the product must periodically undergo training in Emergency Procedures in shallow
water to maintain preparedness in the event of an actual emergency.
All OCEAN REEF regulators can be identied via a serial number. The number is printed on the
housing of the second stage and on the metal body of the rst stage.
All dives must be planned and carried out so that at the end of the dive the diver will still have
a reasonable reserve of air for emergency use. The suggested amount is usually 50 bar (725 psi).
OCEAN REEF refuses all responsibility for damages caused by non-compliance with the
instructions contained in this manual. These instructions do not extend the warranty or the
responsibilities stated by OCEAN REEF terms of sales and delivery.
This Primary 2nd Stage is a standard downstream valve, has a dive pre-dive switch.
In the following cases:
• Damage to some parts of the product
• Difcult to breathe
• Dizziness and/or light-headedness
The dive must be aborted.
Before using the product, the user must ensure that every component has been properly
inspected and maintained. (see Chapter 10 Maintenance).
Do not modify or alter in any way the product.
The high quality of the product does not allow the user to ignore the problems connected
with the correct use of the product and the rules for safe diving.

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For your own safety when operating OCEAN REEF life support equipment, ask you pay attention to
the following:
1. Use the equipment according to this manual and only after having completely read and
understood all instructions and warnings.
2. Use of the equipment is limited to the uses described in this manual or for applications
approved in writing by OCEAN REEF.
3. Cylinders must only be lled with atmospheric compressed air, according to the EN 12021
norm. Should moisture be present in the cylinder, beside causing corrosion of the cylinder,
it may cause freezing and malfunction of the regulator or other connected devices during
dives. Cylinders must be transported according to local rules provided for the transport of
dangerous goods. Cylinder use is subjected to the local laws regulating the use of gases and
compressed air.
4. OCEAN REEF products must be overhauled by qualied personnel at the set schedule.
Overhauls must be documented. When making repairs and during maintenance, only OCEAN
REEF replacement parts must be used.
5. Should the equipment be serviced or repaired without complying with procedures approved
by OCEAN REEF or by untrained personnel or not certied by OCEAN REEF, or should it be used
in ways and for purposes other than specically designated, liability for the correct and safe
function of the equipment transfers to the owner/user.
6. If operating in cold water (temperature lower than 10°C (50°F)) it will be necessary to use a
regulator suited for such temperatures.

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#UNDERWATERNATURALLY
3 - WARNINGS /REMINDERS BEFORE THE DIVE
Before connecting the regulator to the cylinder, check the following:
• Check that the O-ring on the cylinder is in place on the valve and is in perfect working condition (INT
WITH Yoke nipple CGA 850 version only). If it is damaged or missing, it should be replaced.
• Verify that the instrumentation and accessories have been installed correctly.
While opening the cylinder valve, the pressure gauge face must not be directed towards
the user or others, in the event and risk of a pressure gauge malfunction.
If you use quick connection hose always pressurize the Neptune III or the primary 2nd
stage gradually by opening the cylinder valve slowly. When opening the cylinder valve,
the second stage purge button should be slightly pressed, so that the second stage valve
is open.
OCEAN REEF rst stages are available with various cylinder valve tting connectors (according to
ISO standard): DIN: screw connection up to 300 bar INT: yoke connection up to 232 bar.
The octopus is usually considered as an auxiliary emergency second stage to be used by
the diver in case of need (Emergency auxiliary breathing device). The OCEAN REEF Octopus
described in this manual is intended to be used connected to OCEAN REEF rst stages - Maximum
depth: 50 m / 162 feet (According to EN regulation).
If a SCUBA second stage is congured for and used by more than one diver at the same
time, then it shall not be used at depths greater than 30 meters.
Do not push down on the purge button in low temperatures, as this may cause a second stage
freeze-up.
Insert hoses into the ports and tighten using a wrench without using excessive force.
Never connect a low pressure hose to a high pressure port. These connection threads are different
sizes and are not compatible. Do not use adapters of any kind to connect low-pressure devices
to high-pressure ports. Doing so could cause serious damage to both the user and equipment.
Verifying quick connection hoses before the dive is imperative. Attach and detach hoses from
male connections multiple times (before and after pressurizing) to ensure the connection system
operates smoothly. Make sure, once nally connected, that the coupling is secure by pulling on
the female part of the hose, without unlocking the quick connections. The hoses must remain
assembled on the male part rmly. Always make sure you do not get dirt, sand or other material
in the hose mechanism.

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4 - NITROX
Neptune III and Primary 2nd stages are is not CE certied to be used with NITROX! SL35TX
1st stage can’t be used with NITROX. Always use NITROX compatible 1st stages when NITROX is
required.
The Neptune III mask and Primary 2nd stage can be used with NITROX mixes up to 40% O
2
. It is
always recommended to use cleaned air from a specied cleaned air source.
Note: not valid in the European Union.
The Neptune III mask and Primary 2nd stage are Nitrox compatible up to 40% of oxygen. (NOT
valid in the European Countries).
To prevent severe and potentially lethal injuries DO NOT dive using Nitrox (oxygen enriched
air) mixes unless you have rst obtained adequate training and certication in their use by a
recognized certication agency.
Maximum operating depth (MOD) and exposure times to Nitrox (oxygen enriched air) mixes are
dependent upon the oxygen concentration of the mix in use.
Standard production OCEAN REEF regulators distributed to countries outside of the European Community
use normal INT or DIN connections and are manufactured with materials, assembly procedures and
lubricants that ensure compatibility with gas mixes containing oxygen up to 40%. In these countries, users
are required to follow the same safety procedures that apply to dedicated Nitrox regulators and to comply
with the regulations set by each country concerning the use on Nitrox mixes for diving.
USE OF NITROX MIXES OUTSIDE OF THE EUROPEAN UNION
Within the European Community the use of Nitrox mixes is regulated by norms EN 13949 and EN 144-3.
OCEAN REEF has designed and manufactured a special regulator line that complies with the aforementioned
regulations. The rst and second stage regulators of this line are identied by the marking “Nitrox” and
also feature components colored green to allow an immediate identication.
These regulators can be used with oxygen enriched air containing an oxygen concentration higher than 22%
and up to 100% (pure oxygen), at a maximum operating pressure of 200 bar (2900 psi) or 300 bar (4351 psi)
depending on the version.
USE OF NITROX MIXES WITHIN THE EUROPEAN UNION
The term Nitrox (oxygen enriched air) denes breathable mixes composed of oxygen and nitrogen and
containing oxygen in a percentage higher than 21% (atmospheric air). The higher oxygen concentration
limits the use of these mixes with standard scuba equipment and requires the use of materials and
procedures that differ from those required by the use of atmospheric air.

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#UNDERWATERNATURALLY
Main features of Nitrox dedicated regulators
As required by European Standards, Nitrox rst stage regulator connections have been designed and
approved to be used exclusively with Nitrox cylinders and cylinder valves, in order to prevent confusion
with the corresponding standard-production compressed air regulators. OCEAN REEF Nitrox connections
comply with EN 144-3. In Nitrox rst stage regulators, compatibility with high pressure oxygen (higher than
40 bar / 580 psi and up to 200 bar /2900 psi or 300 bar (4351 psi) depending on the version) is ensured
by the choice of special materials used to manufacture seats, O-rings, gaskets and seals used in the high
pressure rst stage mechanism valves. Components are lubricated with a specic oxygen lubricant. OCEAN
REEF Nitrox regulators are assembled in a dedicated area in order to comply with the high cleanliness
standards required for oxygen compatibility.
Do not use Nitrox regulators with oxygen enriched air if they have been used with compressed
air. There might be residues of ammable materials that could cause serious accidents.
Do not use silicone grease for the lubrication of Nitrox regulators.
Second stage regulators, pressure gauges, consoles and other accessories used in combination
with Nitrox rst stage regulators must also be compatible with the use of Nitrox mixes.
Maintenance on regulators that use Nitrox must be performed every 100 dives or at least
annually.
5 - GLOSSARY
Primary 2nd stage

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6 - PRIMARY SECOND STAGE
*Sold separately
Four layer technology, inner layer non-toxic polyurethane blend.
Polyester rst layer reinforcement, thermo rubber jacket.
Polyethylene anti-scratching reinforcement.
HOSE ASSEMBLY
Use a 4mm Allen wrench to remove the LP port plug on the rst stage, then screw the loose end of the hose into
the open port and tighten by hand using a 14mm wrench without using excessive force.
6.1 Hoses
EXTRAFLEX QD HOSE
120CM /48" YELLOW
EXTRAFLEX QD HOSE
80CM /32” BLACK
RUBBER BLACK HOSE
80CM /32”
HOSE
TUTORIAL
Standard downstream valve with dive-predive switch, no adjustment
knob.
Weight (without hose) 230g
Quick Disconnection male part to assemble or sold separately
Black Extraex Quick Disconnection Hose 80cm / 32”to assemble or
sold separately
Static intermediate pressure 9.5-9.8bar
Primary 2nd stage ASSEMBLY
Use a 4mm Allen wrench to remove the LP port plug on the rst stage
as comfortable or taught by your instructor, then screw the loose end
of the primary 2nd stage hose into the open port and tighten by hand
using a 14mm wrench without using excessive force.
Primary 2nd stage
TUTORIAL

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#UNDERWATERNATURALLY
6.1 Hoses
LEAKAGE AND FUNCTION TEST
Carefully open the cylinder valve to fully open. Close the valve a quarter turn!
Check the pressure on the pressure gauge to make sure that there is the required amount of
air for the planned dive. OCEAN REEF recommends that the cylinders should be full before
every dive.
If using primary breathing valve press the purge button on the breathing valve. Check that a strong ow of
air is heard. Release the purge button.
If using an octopus breathing valve, press the purge button on the breathing valve. Check that a strong ow
of air is heard. Release the purge button. Reset the locking lever against the valve housing.
Test the entire system for leaks with the following steps. Close the cylinder valve. Wait for one minute.
Check that the needle does not fall by more than 10 bar (145 psi).
If the test has been successful - open the cylinder valve following the procedure describe above.
If leakage is greater than the specied value, the equipment must be repaired by an OCEAN
REEF certied service technician.
Check the integrity of the LP hoses before the dive, be sure there are no cuts, swellings, cracks,
discoloration or any other kind of damages on it. In such case replace the hose before using.
7 - BEFORE DIVING
Check the pressure gauge to ensure adequate cylinder pressure.
Check that the ends of the hose are correctly tightened to the OCEAN REEF rst and second
stage before starting the dive.
Check that you are able to equalize (clear your ears).
Open the cylinder valve, don the equipment en put the second stage in your mouth, breathe
deeply a few times to ensure that the system is operating correctly. When the mouthpiece is
out of the mouth, simply pressing the purge button may trigger the Venturi effect and cause a
regulator free-ow. The free-ow can be stopped by covering the mouthpiece opening with a
nger.
With the LP hose plugged in press the purge button of the 2nd stage and check that the air ows
freely. Release the button and check that air stops owing.

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PURGING
The diver should be facing straight ahead, with the exhaust valve being the LOWEST part of the system
while holding the top side of the mask with his/her palm.
• Periodically check the pressure gauge.
• Make sure that other equipment does not interfere with the operation of or access to
the necessary controls and components.
• Check for leaks.
8 - DURING A DIVE
The dive should be planned with the intention of not using a reasonable reserve of air for
emergency use. The minimum recommended pressure that should be left in the cylinders
upon dive completion is usually 50 bar (725 psi).
Breathe normally through your mouth.
Breathing must be continuous, without holding one’s breath.
CHECKS DURING DIVING

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#UNDERWATERNATURALLY
DISMANTLING
The apparatus should be cleaned as described in the section 13 titled MAINTENANCE, CLEANING,
DECONTAMINATION AND STORAGE, before, carry out the following:
1. Close the cylinder valve by turning the cylinder valve handle clockwise until it reaches following its
end position.
2. Thoroughly vent the system by pressing the purge button on the breathing valve.
3. Disconnect the regulator(s) from the cylinder(s).
4. Make sure the dust cover is rmly in place to keep water out of the rst stage.
5. Carefully rinse the regulator with fresh, gently owing water. Do not press the purge button.
6. Do not pull on the hoses when the regulator is still attached to the tank and, after removing the hoses,
avoid storing them on a tight loop.
7. When the regulator is not connected, the cylinder valve must be tted with a plug.
8. Damp equipment should be thoroughly dried if it is to be stored in the backpack for more than a few
hours.
If you accidentally press the purge button during the rinsing procedures, then attach the
regulator to the tank and press the purge button for 10-15 seconds to purge any water or debris
from regulator.
Close the cylinder valve and drain the system by pushing on the purge button of each second stage. Once
the system has been depressurized disconnect the rst stage regulator from the valve.
All inlets must be closed with the provided protective caps to avoid the entry of debris, dirt or moisture.
If the cylinder valve is equipped with a reserve system the rod should be put in the “open” position (fully
lowered) to indicate that the cylinder needs to be lled.
9 - AFTER DIVING/ POST DIVE PROCEDURES

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Table 1: Periodic maintenance program
10.1 MAINTENANCE, CLEANING, DISINFECTION
The Primary 2nd stage will work perfectly if the periodic program of maintenance, cleaning and disinfection
collected in table 1 is applied during its whole life from the rst use. General and visual inspection are related
to the check that all the components and parts are not damaged, without any wear and tear. No damages must
be detected on mouthpiece, cover, purge valve, hoses and QDs. If damages are detected, the product cannot
be used until repair.
10 - MAINTENANCE, CLEANING, DISINFECTION,
CARE AND STORAGE
TYPE OF
ACTION FIRST USE
BEFORE
EACH
USE
AFTER A
DIVE MONTHLY EVERY YEAR
EVERY 2
YEARS
EVERY 5
YEARS
GENERAL
FUNCTION
CHECK X X
GENERAL
AND VISUAL
INSPECTION X X X
LEAK TEST X
DISINFECTION X X
CLEANING /
RINSE X
REGULATOR
SERVICING X
For optimum longevity of the product and the proper functioning of its parts we recommend rinsing the
mask thoroughly in fresh water after every use.
*
*
These actions can be performed by an authorized OCEAN REEF Servicing Center.
Do not use silicone grease on silicone components, as this may cause some parts to deform. In
addition, do not use silicone grease on components in the high pressure area of the rst stage as
this would compromise the compatibility with Nitrox mixes.

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#UNDERWATERNATURALLY
Equipment should be disinfected, especially when it comes into contact with the face, eyes or mouth. This
includes but is not limited to:
• Second stage regulator (Octopus), primary second stage and internal surfaces
• Snorkel
• BCD oral inator
• Mask
For an efcient cleaning of any part of the equipment, soaking in clean warm water (around 40°C/100F°)
adding a colourless not perfumed hand washing liquid soap is suggested.
Afterwards, rinse deeply under fresh water to remove any soap residual and allow the perfect drying in a
safe and clean environment.
Cleaning frequency must ensure to the user a good protection and the right functionality. When using any
disinfectant, be sure to follow the manufacturer’s instructions for use. Follow this with a thorough rinse
in fresh water, and allow the equipment to dry completely before use. Since some chemicals can damage
surfaces, they should be tested prior to use for each individual item or surface. After disinfecting, one must
take care not to contaminate the equipment, such as by handling it when storing. Therefore, dry, pack and
store any sanitized equipment in a disinfected bag or container using washed/sanitized hands.
10.3 STORAGE
All the components should be stored in a ventilated environment preferably between -10°C (14°F)
and +50°C (122°F), avoiding the direct action of sunlight, pollution, dirt, etc. For both storage and
transportation the use of the original carrying backpack is suggested.
10.2 CARE
1. Ensure that the high pressure inlet of the rst stage regulator is closed with the special protective
cap.
2. Should water accidentally enter the low pressure hose, connect the regulator to the cylinder, open
the valve and press the second stage purge button down until all water has been expelled.
3. Dry your regulator completely in a dry ventilated place, away from heat and direct sunlight.
Care of regulators when not in use:
1. Make sure that the high pressure inlet protective cap is in the correct position.
2. Keep the regulator in a dry place, away from heat and direct sunlight. The mouthpiece should be
periodically immersed in a disinfecting solution and rinsed with fresh water to completely remove the
disinfectant. Do not use disinfectant substances that could damage the mouthpiece.

Primary 2nd stage Owner’s Manual rel. 1.0
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* OCEAN REEF recommends that the regulator be serviced at least once a year, or after
100 dives. This should only be performed by an authorized OCEAN REEF service center
which uses original spare parts. This also applies to any periodic servicing.
11 - TROUBLESHOOTING - EMERGENCY PROCEDURE
In case of persistence of these problems and failure to resolve, contact an authorized OCEAN
REEF technician.
For more information visit our website at: diving.oceanreefgroup.com/shop-dealers/
PROBLEM PROBABLE CAUSE SOLUTION
After opening the cylinder valve the
pressure gauge shows zero.
1. Empty cylinder.
2. Malfunctioning pressure gauge.
3. Malfunctioning cylinder valve.
Fill the cylinder.
Have the pressure gauge replaced by an
OCEAN REEF authorized technician.
Have the cylinder valve checked by an OCEAN
REEF authorized technician.
HP or IP leak. Damaged O-rings.
Have the O-rings replaced by an OCEAN REEF
authorized technician.
Avoid over-tightening the connections.
Valve leak. Defective valve or stem. Have the valve checked by an OCEAN REEF
authorized technician.
No air supply. Malfunctioning regulator (rst or
second stage).
Have the regulator checked by an OCEAN REEF
authorized technician.
The regulator free ows. Unwanted Venturi effect.
Cover the mouthpiece with a nger or direct
the mouthpiece opening down submerging it.
Purge button has sand stuck inside. 1st stage
intermediate pressure higher than 138 -> 142
psi / 9.5 -> 9.8 bar.
If the free ows continues. Malfunctioning regulator.
Regulator requires servicing*.
Do not begin the dive (or if already in the dive,
end it) and have the regulator checked by an
OCEAN REEF authorized technician.
Regulator hard to breathe Malfunctioning regulator. 1st stage intermediate pressure lower than 138
-> 142 psi / 9.5 -> 9.8 bar.
If still hard to breathe Malfunctioning regulator.
Regulator requires servicing*.
Do not begin the dive (or if already in the dive,
end it) and have the regulator checked by an
OCEAN REEF authorized technician.

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#UNDERWATERNATURALLY
1. The OCEAN REEF primary second stage is guaranteed to be free of material or manufacturing
defects for a period of 24 months from the time the unit is purchased.
2. For the duration of the above mentioned warranties, the Company’s responsibility is
limited to replacement of any parts that are defective and that have not been used
incorrectly or handled negligently. The product must be returned to the outlet from which
it was bought, along with the warranty card.
3. Even during the warranty period, this warranty shall not be valid where:
• Damage was caused by incorrect handling or carelessness.
• Damage was caused by the mask falling after it was purchased.
• Damage caused by re, earthquake, oods, lightning, or other natural disasters.
• The warranty card is not produced.
• Your name, the date of purchase, and the distributor’s name do not appear on
the warranty card.
• The product has not been serviced as required through an OCEAN REEF
authorized service center.
• The product has been tampered with or has been repaired/serviced with
non-original parts.
12 - WARRANTY
You can nd a copy of this and other OCEAN REEF manuals online on our website.
In order to limit our paper consumption, and as a part of our environmental friendly and responsible
approach, OCEAN REEF recommends, in case you lose or damage this manual, to consult the
documentation present online rather than print it out.
Please refer to our web site:
diving.oceanreefgroup.com/support/
© OCEAN REEF 2022

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NOTES:

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#UNDERWATERNATURALLY
NOTES:

Primary 2nd stage Owner’s Manual rel. 1.0
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OCEAN REEF Inc
2510 Island View Way
Vista, CA 92081
Phone [phone]
Fax [phone]
E-mail: [email protected]
MESTEL Safety s.r.l
Via Arvigo 2, 16010 Genova (Italia)
Phone [phone]
E-mail: [email protected]
diving.oceanreefgroup.com
oceanreefgroup.com
ACCESSORY INTEGRATION
• ExtenderKitInlcuded..
• Surfaceairvalveintegrated.
• Customizeyourmasktoyourprofessionalneeds.