11
Performance Data
Model NSDW500 Drinking Water Filter
IMPORTANT NOTICE:
Read this performance data and compare the
capabilities of this unit with your actual water treatment needs. It is
recommended that, before purchasing a water treatment unit, you have your water supply tested to determine your actual
water treatment needs. This filter system is designed to be used for the reduction of the performance claims listed below.
Do not use where water 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 water that may contain filterable cysts.
While testing was performed under standard laboratory conditions, actual performance of this system may vary based
on local water conditions. Some or all of the contaminants reduced by this unit may not be in your water supply. See
elsewhere in this owner’s manual for further instructions on filter cartridge replacement, system installation, operating
procedures, and warranty. The maintenance instructions must be followed for the product to perform as indicated below.
General Information
This filter improves the taste and odor and reduces
many chemical contaminants in drinking water. The
faucet indicator monitors the length of time the filter has
been installed and will flash amber continuously; indi-
cating the filters and battery need to be replaced.
This system has been tested according to NSF/ANSI 42
and 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 leav-
ing the system, as specified in NSF/ANSI 42 and 53.
The testing was performed using spiked tap water at a
flow rate of 0.5 gpm (1.9 L/min.), pH of 7.5 ± 0.5, pres-
sure of 60 psig, and temperature of 68 ±5°F.
Installation Requirements
Pressure Range................. 30-100 psig (207-689 kPa)
Temperature Range ........................ 40-100°F (5-38°C)
Service Flow Rate........................ 0.5 gpm (1.9 L/min.)
Service Life ......................... 270 Gallons (1,022 Liters)
Maintenance
Cartridges should be replaced every 270 gallons or six
months, whichever comes first. Replacement filter
prices will vary. Estimated costs of replacement filter
elements (part number 7358195) range from $30.00 to
$50.00 per filter element.
PERFORMANCE CLAIMS
Contaminant
NSF Required
Influent Level
(mg/L)
2
NSF Max. Per -
missible Eff.
Level (mg/L)
2
Average
Influent Level
(mg/L)
2
Avg. / Max.
Effluent
(mg/L)
2
Avg. / Min.
Percent
Reduction
EPA MCL
1
(mg/L)
2
Cyst
≥50,000
particles / mL
4,5
99.95%
3
93,000
particles / mL
4
<1 / <4
particles / mL
4
99.99 / 99.99
None
7
Lead @ pH 6.5
0.15 ±10%
0.010
0.152
0.001 / 0.001
99.3 / 99.3
0.015
Lead @ pH 8.5
0.15 ±10%
0.010
0.150
0.001 / 0.001
99.3 / 99.3
0.015
Methyl
tert
-Butyl Ether (MTBE)
0.015 ±20%
0.005
0.01467
0.0005 / 0.0005
96.2 / 96.2
None
6
Substance
Chlorine Taste & Odor
2.0 ±10%
50%
3
2.0
0.05 / 0.08
97.5 / 96.2
None
6
VOC Reduction
7
Chloroform
0.30 ±10%
95%
3
0.320
0.0005 / 0.0005
99.8 / 99.8
0.080
1
Environmental Protection Agency Maximum Contaminant Level, as required under the Safe Drinking Water Act.
2
Milligrams per Liter, which is equivalent to parts per million (PPM).
3
NSF minimum percent reduction requirement. Acceptance level for this substance is based on percent reduction, rather than
maximum effluent concentration.
4
Cyst reported in particles per milliliter.
5
Microspheres was used as a surrogate.
6
The EPA has not determined an MCL for this chemical.
7
Chloroform was used as a surrogate for the reduction of chemicals specified in the Organic Chemicals Reduced by Chloroform
Surrogate Testing table.
System tested and certified by NSF International against
NSF/ANSI Standard 42 for the reduction of chlorine taste and odor,
and Standard 53 for the reduction of cyst, lead, MTBE and VOCs.
