A.O. Smith AO-US-200 - User Manual

Performance Data Sheet for the A. O. Smith 2-Stage Water Filter

Models

Replacement

Rated capacity

Operating temp. range

Rated flow

AO-US-200

AO-US-200-R

500 gallons

1892 Liters

40-90° F

4.44-32.2° C

0.5 gpm

1.9 lpm

Manufactured by: A. O. Smith Corporation

| 11270 W Park Pl #170, Milwaukee, WI 53224 | 877.333.7108

Table 8.2 – Performance data sheet reduction claims for
organic chemicals included by surrogate testing

VOCs
(by surrogate testing
using chloroform)

Drinking
water
regulatory
level (MCL/
MAC) mg/L

Influent/
Unfiltered
mg/L

Effluent/
Filtered
mg/L

Percent
Reduction

alachlor

0.002

0.050

0.001

>98%

atrazine

0.003

0.100

0.003

>97%

benzene

0.005

0.081

0.001

>99%

carbofuran

0.04

0.190

0.001

>99%

carbon tetrachloride

0.005

0.078

0.0018

98%

chlorobenzene

0.1

0.077

0.001

>99%

chloropicrin

—

0.015

0.0002

99%

2,4-D

0.07

0.110

0.0017

98%

dibromochloropropane (DBCP) 0.0002

0.052

0.00002

>99%

o-dichlorobenzene

0.6

0.080

0.001

>99%

p-dichlorobenzene

0.075

0.040

0.001

>98%

1,2-dichloroethane

0.005

0.088

0.0048

95%

1,1-dichloroethylene

0.007

0.083

0.001

>99%

cis-1,2-dichloroethylene

0.07

0.170

0.0005

>99%

trans-1,2-dichloroethylene

0.1

0.086

0.001

>99%

1,2-dichloropropane

0.005

0.080

0.001

>99%

cis-1,3-dichloropropylene

—

0.079

0.001

>99%

dinoseb

0.007

0.170

0.0002

99%

endrin

0.002

0.053

0.00059

99%

ethylbenzene

0.7

0.088

0.001

>99%

ethylene dibromide (EDB)

0.00005

0.044

0.00002

>99%

haloacetonitriles (HAN)
bromochloroacetontrile

—

0.022

0.0005

98%

dibromoacetontrile

—

0.024

0.0006

98%

dichloroacetontrile

—

0.0096

0.0002

98%

trichloroacetontrile

—

0.015

0.0003

98%

haloketones (HK)
1,1-dichloro-2-propanone

—

0.0072

0.0001

99%

1,1,1-trichloro-2-propanone

—

0.0082

0.0003

96%

heptachlor (H-34, Heptox)

0.0004

0.025

0.00001

>99%

heptachlor epoxide

0.0002

0.0107

0.0002

98%

hexachlorobutadiene

—

0.044

0.001

>98%

hexachlorocyclopentadiene

0.05

0.060

0.000002 >99%

lindane

0.0002

0.055

0.00001

>99%

methoxychlor

0.04

0.050

0.0001

>99%

pentachlorophenol

0.001

0.096

0.001

>99%

simazine

0.004

0.120

0.004

>97%

styrene

0.1

0.150

0.0005

>99%

1,1,2,2-tetrachloroethane

—

0.081

0.001

>99%

tetrachloroethylene

0.005

0.081

0.001

>99%

toluene

1

0.078

0.001

>99%

2,4,5-TP (silvex)

0.05

0.270

0.0016

99%

tribromoacetic acid

—

0.042

0.001

>98%

1,2,4-trichlorobenzene

0.07

0.160

0.0005

>99%

1,1,1-trichloroethane

0.2

0.084

0.0046

95%

1,1,2-trichloroethane

0.005

0.150

0.0005

>99%

trichloroethylene

0.005

0.180

0.0010

>99%

trihalomethanes (THMs)

Influent/

Unfiltered

Effluent/

Filtered

Percent

Reduction

bromodichloromethane (THM)

0.080

0.300

0.015

95%

bromoform (THM)
chloroform (THM)
chlorodibromomethane (THM)
xylenes (total)

10

0.070

0.001

>99%

NSF/ANSI 42

Minimum Reduction Overall % Reduction Results

Chlorine Reduction, Free Available

≥50%

97.3%

Pass

Chloramine Reduction, Free Available 0.5 mg/l

97.6%

Pass

Particulate Reduction

(particles 0.5 to <1 μm)

>85%

99.6%

Pass

NSF/ANSI 53

Minimum Reduction Overall % Reduction Results

Asbestos Reduction

99%

>99%

Pass

Cyst Reduction

99.95%

99.99%

Pass

Lead Reduction pH 6.5

5 ug/L

>99.7%

Pass

Lead Reduction pH 8.5

5 ug/L

94.1%

Pass

Mercury Reduction pH 6.5

2 ug/L

>96.2%

Pass

Mercury Reduction pH 8.5

<2 ug/L

99.6%

Pass

MTBE Reduction

5 ug/L

83.5%

Pass

Perfluorooctanoic acid (PFOA) &

Perfluorooctane sulfonate (PFOS)

0.07 ug/L

95.2%

Pass

Turbidity

0.5 NTU

99.34%

Pass

VOC Surrogate Test

(as chloroform)

See Table 8.2

99.6%

Pass

NSF/ANSI 401

Maximum

Concentration Minimum Reduction Overall % Reduction Results

Atenolol

30 ng/L

94.7%

>94.7%

Pass

Bisphenol A

300 ng/L

98.9%

>98.9%

Pass

Carbamazepine

200 ng/L

98.4%

>98.4%

Pass

DEET

200 ng/L

98.4%

>98.4%

Pass

Estrone

20 ng/L

96.1%

>96.1%

Pass

Ibuprofen

60 ng/L

95.1%

>95.2%

Pass

Linuron

20 ng/L

96.3%

>96.3%

Pass

Meprobamate

60 ng/L

94.6%

>94.6%

Pass

Metolachlor

200 ng/L

98.4%

>98.4%

Pass

Naproxen

20 ng/L

96.4%

>96.5%

Pass

Nonyl phenol

200 ng/L

90.3%

92.5%

Pass

Phenytoin

30 ng/L

95.4%

91.5%

Pass

TCEP

700 ng/L

98%

>98%

Pass

TCPP

700 ng/L

97.9%

>97.9%

Pass

Trimethoprim

20 ng/L

96.1%

>96.1%

Pass

Microplastics

(particles 0.5 to <1 μm)

At least 10,000

particles/mL

85%

>85%

Pass

System tested and certified by WQA to NSF/ANSI Standards

42, 53, and 401 for the reduction of the claims specified on

the Performance Data Sheet and at www.WQA.org.

Filter is only to be used
with cold water.

Testing was performed under
standard laboratory conditions,
actual performance may vary.

Systems certified for cyst reduction
may be used on disinfected waters
that may contain filterable cysts.

• All contaminants reduced by this filter are listed.

• Not all contaminants listed may be present in your water.

• Does not remove all contaminants that may be present in tap water.

• The contaminants covered in NSF/ANSI 401 have been deemed as incidental/emerging
compounds and have been detected in drinking water supplies at trace levels. These
compounds can affect some consumers’ perception of drinking water quality.

This system has been tested according to NSF/ANSI Standards 42, 53, and 401 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 Standards 42, 53, and 401.