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Sub-Zero Water Filtration System
REPLACEMENT CARTRIDGE (4204490)
Tested and certified by NSF International against NSF/ANSI Standard 42 for the reduction of Chlorine Taste & Odor,
Particulate Class I; and against NSF/ANSI Standard 53 for the reduction of Lead, Mercury, Atrazine, Benzene, Carbofuran,
1,4-dichlorobenzene, Lindane, Toxaphene, Turbidity, Cysts, and Asbestos.
OPERATING SPECIFICATIONS
Capacity: certified for up to 750 gallons (2,838 L); up to twelve months
Pressure Requirement: 35–120 psi (2.8–8.2 bar)
Temperature: 33–100°F (0.6–38°C)
Flow Rate: 0.78 gpm (2.9 Lpm)
NSF
Standard
Influent Challenge
Concentration
Average Influent
Concentration
Product Water Concentration % Reduction
Max Permissible
Product Water
ConcentrationSubstance Average Max Euent Average Minimum
Chlorine, Taste & Odor 42 2.0 mg/L ± 10% 1.88 mg/L 0.05 mg/L 0.06 mg/L 97.34% 96.80% ≥ 50%
Particulate 42
At least 10,000
particles/ml
5,700,000/ml 30,583/ml 69,000/ml 99.46% 98.78% ≥ 85%
Lead at pH 6.5 53 0.15 mg/L ± 10% 0.153 mg/L <0.001 mg/L <0.001 mg/L 99.34% 99.34% 0.010 mg/L
Lead at pH 8.5 53 0.15 mg/L ± 10% 0.150 mg/L <0.001 mg/L <0.001 mg/L 99.33% 99.33% 0.010 mg/L
Mercury at pH 6.5 53 0.006 mg/L ± 10% 0.006 mg/L 0.0003 mg/L 0.0005 mg/L 95.00% 91.66% 0.002 mg/L
Mercury at pH 8.5 53 0.006 mg/L ± 10% 0.006 mg/L 0.0008 mg/L 0.0015 mg/L 86.66% 75.00% 0.002 mg/L
Atrazine 53 0.009 mg/L ± 10% 0.009 mg/L <0.002 mg/L <0.002 mg/L 77.77% 77.77% 0.003 mg/L
Benzene 53 0.015 mg/L ± 10% 0.014 mg/L 0.0006 mg/L 0.0011 mg/L 95.71% 92.14% 0.005 mg/L
Carbofuran 53 0.08 mg/L ± 10% 0.081 mg/L <0.001 mg/L <0.001 mg/L 98.76% 98.76% 0.04 mg/L
1,4-dichlorobenzene 53 0.225 mg/L ± 10% 0.208 mg/L <0.0005 mg/L <0.0005 mg/L 99.75% 99.75% 0.075 mg/L
Lindane 53 0.002 mg/L ± 10% 0.002 mg/L 0.00003 mg/L 0.00007 mg/L 98.50% 96.50% 0.0002 mg/L
Toxaphene 53 0.015 mg/L ± 10% 0.015 mg/L <0.001 mg/L <0.001 mg/L 93.33% 93.33% 0.003 mg/L
Turbidity 53 11 ± 1 NTU 10.7 NTU 0.31 NTU 0.49 NTU 97.10% 95.42% 0.5 NTU
Cysts** 53 Minimum 50,000/L 166,500/L <1/L <1/L >99.99% >99.99% >99.95%
Asbestos 53 10
7
to 10
8
fibers/L
†
155 MF/L <1 MF/L <1 MF/L >99.99% >99.99% >99%
**Based on the use of Cryptosporidium Parvum oocysts † Fibers greater than 10 μm in length
• Do not use with water that is microbiologically unsafe or of
unknown water 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.
• This system must be installed, operated and maintained, and filters
must be replaced as required in order for the product to perform as
advertised.
• Note that while the testing was performed under standard labora-
tory conditions, actual performance may vary. The contaminants
or other substances removed or reduced by this water treatment
system are not necessarily in your water.
SPECIAL NOTES
• Replacement Sub-Zero water filter cartridges can be ordered online
at subzero.com/store. For questions, contact Sub-Zero Customer
Care at 800-222-7820.
• Change filter cartridge at least every twelve months. High sediment
areas may require more frequent filter cartridge replacement.
• Installation and operation instructions, parts and service availabil-
ity, and standard warranty are included with the product when
shipped.
• Replace water filter cartridge when the filter indicator is lit or
when water flow becomes too low. Use replacement water filter
cartridge part number 4204490. Replacement filter pricing infor-
mation can be found at subzero.com/store.
Manufactured for: Sub-Zero, Inc., P.O. Box 44848, Madison, WI 53744, 800-222-7820
This system has been tested according to NSF/ANSI 42/53 for
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 42/53.
Water Filtration System Data
