PERFORMANCE DATA SHEETS
Interior Water Filtration System
Model OWF50-NI300 capacity 300 Gallons (1136 Liters)
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 &
Mechanical Filtration Unit
Cyst, Turbidity, & Asbestos Reduction
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.
Substance | Influent Challenge | Effluent Average | Average % | Max. Effluent | Min. Required | Inlet pH |
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| Reduction |
| Reduction |
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Lead: | 0.15 mg/L ± 10% | 0.001 mg/L | 99.33% | 0.001 mg/L | 0.010 mg/L | 6.5 |
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Lead: | 0.15 mg/L ± 10% | 0.002 mg/L | 98.66% | 0.003 mg/L | 0.010 mg/L | 8.5 |
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Cyst | Minimum 50,000 L | 1 count/mL | 99.99% | 3 count/mL | > 99.95% | NA |
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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 |
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Atrazine | 0.009 mg/L ± 10% | 0.0002 mg/L | 97.93% | 0.0006 mg/L | 0.003 mg/L | NA |
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Chlorine | 2.0 mg/L ± 10% | 0.09 mg/L | 95.26% | 0.17 mg/L | Š 75% | NA |
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Particulate* | at least 10,000 particles/mL | 900 count/mL | 99.68% | 2400 count/mL | ≥ 85% | NA |
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0.210 mg/L ± 10% | 45.45 ug/L | 84.42% | 100 ug/L | 0.0017 mg/L | NA | |
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Asbestos | 107 to 108 fibers/L; fibers greater | 0.16 MFL/mL | 99.96% | 0.16 MFL/mL | 99% | NA |
| than 10 micrometers in length |
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* 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).
■It is essential that operational, maintenance, and filter replacement requirements be carried out for the product to perform as advertised.
■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
■The product is for cold water use only.
■Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
■Refer to the “Assistance or Service” section for parts and service availability or for the Manufacturer’s name, address and telephone number.
Pentapure Incorporated 1000 Apollo Road
Eagan, Minnesota
®NSF is a registered trademark of NSF International.
■Refer to the “Warranty” section for the Manufacturer’s limited warranty.
■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.
Application Guidelines/Water Supply Parameters
Water Pressure | 35 - 120 psig (241 - 827 kPa) | |
Water Temperature | 33° - 100°F (0.6° - | 37.8° C) |
Rated Service Flow | 0.75 gpm (2.83 | Lpm) |
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