
Replacement Parts
US-EZ
1 head assembly
2 RC-EZ-1 filter cartridge Level 1 filtration
3 RC-EZ-3 filter cartridge Level 3 filtration
4 RC-EZ-4 filter cartridge Level 4 filtration
5 lead-free faucet
6 clear 1/4 inch tubing
7 small parts pack
Contact your area retailer or local water treatment professional for re-
placement cartridge pricing. For replacement parts, contact your nearest
Culligan water filter retailer or call 1-800-721-7360.
Troubleshooting
Leaks:
...between head and cartridge
1. Turn off the water supply to the filter and dispense water from
drinking water faucet until water and airflow stops.
2. Remove cartridge and inspect o-rings to make sure they are in
place and clean.
3. Install cartridge and turn on water supply. If it still leaks,
contact Technical Support at 1-800-721-7360 M-F 8:00 AM
- 4:30 PM CST.
...from fittings
Turn off water supply to the filter and turn on drinking water faucet to
release pressure in system. Press in the grey collar around the fitting while
pulling the tubing with the other hand. Check if tubing is cut squarely or
scratched. If tubing is scratched or uneven, cut off 1/2” to 5/8” and re-
install per step five of the installation; connecting the supply adapter and
inlet of filter. Open the water supply valve, then close faucet and check
for leaks. If the leaks persist, or if there are other leaks on the unit, turn off
the water supply then call Technical Support at 1-800-721-7360.
...on supply adapter connection
Turn off water supply valve and turn on drinking water faucet to release
pressure in system.
Loosen leaking threaded fitting on supply adapter or pull out leaking
tubing from fitting. Inspect to see if plastic tubing is scratched or supply
adapter was properly attached. If tubing is scratched, cut off 1/2-inch to
5/8-inch and reinstall per Step Five: Connecting the Supply Adapter and
Inlet of Filter. Reconnect tubing or tighten compression nut with fingers,
then tighten nut snugly 1/2-turn with wrench. Turn on water supply valve
and check for leaks.
Troubleshooting, continued
...on faucet/tubing connection
Turn off water supply valve and turn on drinking water faucet to release
pressure. Loosen and remove compression nut fitting on faucet stem.
Check if tubing is cut squarely. Make sure tubing is inserted firmly into
end of faucet stem, then retighten compression nut with fingers until se-
cure, then tighten nut snugly 1/2-turn with wrench. Turn on water supply
valve, then close faucet and check for leaks.
NOTE: If leaks persist, or if there are other leaks on system, turn off wa-
ter supply. Call our Technical Support Department at 1-800-721-7360.
Performance Data
Do not use with water that is microbiologically unsafe
or of unknown quality without adequate disinfection before or after the
system. Systems certified for cyst reduction may be used on disinfected
waters that may contain filterable cysts.
NOTE: Substances reduced are not necessarily in your water. Filter
must be maintained according to manufacturer’s instructions, including
replacement of filter cartridges.
Model US-EZ
Important Notice: Read this performance data and compare the
capabilities of this system with your actual water treatment needs. It is
recommended that, before installing a water treatment system, you have
your water supply tested to determine your actual water treatment needs.
RC-EZ-1 Cartridges
This system has been tested according to NSF/ANSI 42 for the reduc-
tion of the substances listed below. The concentration of the indicated
substances in water entering the system was reduced to a concentration
less than or equal to the permissible limit for water leaving the system,
as specified in NSF/ANSI 42.
Substance
Influent
Challenge
Concentration
Maximum
Permissible
Product Water
Concentration
Reduction
Requirements
Minimum
Reduction
Average
Reduction
Standard 42
Aesthetic Chlorine 2.0 mg/L±10% ≥50% 94.8% 97.4%
Particulates
(5µm to<15µm)-Class III
at least 10,000
particles/mL ≥85% 99.8% 99.9%
Flow Rate=0.5 gpm (1.89 Lpm) Capacity=3000 gallons (11,356 L) or 12 months
Testing was performed under standard laboratory conditions, actual performance may vary.
RC-EZ-3 Cartridges
This system has been tested according to NSF/ANSI 42 and 53 for
the reduction of the substances listed below. The concentration of the
indicated substances in water entering the system was reduced to a
concentration less than or equal to the permissible limit for water leaving
the system, as specified in NSF/ANSI 42 and 53.
Substance
Influent
Challenge
Concentration
Maximum
Permissible
Product Water
Concentration
Reduction
Require-
ments
Minimum
Reduction
Average
Reduction
Standard 42
Aesthetic Chlorine 2.0 mg/L±10% ≥50% 96.2% 97.4%
Particulates
(0.5 to<1µm)-Class I
at least 10,000
particles/mL ≥85% 99.8% 99.9%
Standard 53
Cyst Minimum
50,000/L 99.95% 99.95% 99.9%
Turbidity 11 mg/L ± 1 NTU 0.5 NTU 96.4% 98.5%
Lead (pH 6.5) 0.15 mg/L ± 10% 0.010 mg/L 99.3% 99.3%
Lead (pH 8.5) 0.15 mg/L ± 10% 0.010 mg/L 94.8% 98.3%
Atrazine 0.009 mg/L
± 10% 0.003 mg/L 94.1% 94.1%
Lindane 0.002 mg/L
± 10% 0.0002 mg/L 94.5% 98.2%
Flow Rate=0.5 gpm (1.89 Lpm) Capacity=500 gallons (1893 L) or 6 months
Testing was performed under standard laboratory conditions, actual performance may vary
RC-EZ-4 Cartridges
This system has been tested according to NSF/ANSI 42, 53 and 401
for the reduction of the substances listed below. The concentration of
the indicated substances in water entering the system was reduced to a
Technical Support: 1-800-721-7360, Monday-Friday, 8:00 a.m. – 4:30 p.m., CST
WARNING:
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