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PERFORMANCE DATA SHEETS
Interior Water Filtration System
Model OWF50-NI300 capacity 300 Gallons (1136 Liters)
This system has been tested according to ANSI/NSF 42/53 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 ANSI/NSF 42/53. Systems certified for cyst reduction may be used on disinfected water
that may contain filterable cysts.
* Particle size range classification of test. Particles used were 0.5 - 1 microns.
Test Parameters: pH = 7.5 ± 0.5 unless otherwise noted. Flow = 0.75 gpm (2.83 Lpm). Pressure = 120 psi (827 kPa). Temp. = 63°F
(17.2°C).
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It is essential that operational, maintenance, and filter
replacement requirements be carried out for the product to
perform as advertised.
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Using Replacement Cartridge OWF51 - Model OWF50-
NI300:
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 ANSI/NSF 42 and 53. Change
cartridge at least every 6-9 months. Use replacement
cartridge OWF51, part# 4396395. 2003 suggested retail price
of $29.95 U.S.A./$39.95 Canada. Prices subject to change
without notice.
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The product is for cold water use only.
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Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before
or after the system.
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Refer to the “Assistance or Service” section for parts and
service availability or for the Manufacturer’s name, address
and telephone number.
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Refer to the “Warranty” section for the Manufacturer’s limited
warranty.
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Note that while the testing was performed under standard
laboratory conditions, actual performance may vary. Systems
must be installed and operated in accordance with
manufacturer’s recommended procedures and guidelines.
Tested and Certified by NSF International against ANSI/NSF Standards
42 & 53 for the reduction of:
Standard No. 42: Aesthetic Effects
Taste & Odor Reduction
Chlorine Reduction
Mechanical Filtration Unit
Particlate Reduction Class 1
Standard No. 53: Health Effects
Chemical Reduction Unit
Lead, Atrazine, Lindane & 2,4-D Reduction
Mechanical Filtration Unit
Cyst, Turbidity, & Asbestos Reduction
Substance Influent Challenge
Concentration
Effluent Average Average %
Reduction
Max. Effluent Min. Required
Reduction
Inlet pH
Lead: 0.15 mg/L
± 10%
0.001 mg/L 99.33% 0.001 mg/L 0.010 mg/L 6.5
Lead: 0.15 mg/L
± 10%
0.002 mg/L 98.66% 0.003 mg/L 0.010 mg/L 8.5
Cyst Minimum 50,000 L 1 count/mL 99.99% 3 count/mL > 99.95% NA
Turbidity 11
± 1 NTU
0.12 NTU 98.98% 0.18 NTU 0.5 NTU NA
Lindane 0.002 mg/L
± 10%
0.00005 mg/L 97.62% 0.00005 mg/L 0.00002 mg/L NA
Atrazine 0.009 mg/L
± 10%
0.0002 mg/L 97.93% 0.0006 mg/L 0.003 mg/L NA
Chlorine 2.0 mg/L
± 10%
0.09 mg/L 95.26% 0.17 mg/L Š 75% NA
Particulate* at least 10,000 particles/mL 900 count/mL 99.68% 2400 count/mL ≥ 85% NA
2,4-D 0.210 mg/L
± 10%
45.45 ug/L 84.42% 100 ug/L 0.0017 mg/L NA
Asbestos 10
7
to 10
8
fibers/L; fibers greater
than 10 micrometers in length
0.16 MFL/mL 99.96% 0.16 MFL/mL 99% NA
Application Guidelines/Water Supply Parameters
Water Pressure
Water Temperature
Rated Service Flow
35 - 120 psig (241 - 827 kPa)
33° - 100°F (0.6° - 37.8° C)
0.75 gpm (2.83 Lpm)
Pentapure Incorporated
1000 Apollo Road
Eagan, Minnesota 55121-2240
651-554-3141
® NSF is a registered trademark of NSF International.