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CARE AND MAINTENANCE
4
AOW-2000
Replacement cartridge AOW-2000-R
Rated service flow .5gpm (1.89 lpm)
Max capacity 500 gal (1892 liters)
Min working pressure 20 psi (137 kPa)
Max working pressure 80 psi (551 kPa)
Min operating temperature 40° F (4.44° C)
Max operating temperature 90° F (32.22° C)
Remove
Place wrench
each sump
from the
over sump
manifold
top and
by hand.
slide down.
Continue turning
counterclockwise.
WARNING Do not use tools
to remove or tighten sumps.
Over-tightening can cause
damage and result in leaking.
HAND TIGHTEN ONLY.
NEED HELP? GIVE US A CALL 833.232.9711
To clean your filter unit, wipe down
the exterior with a damp cloth.
Once filters are at 95% capacity (about
every 6 months), the battery alarm will
sound and flash red when water is
flowing and will continue for 15 seconds
once water is turned off. Change the
battery every time you replace your filters.
The battery is included with the filter
replacement cartridges.
Safeguards
• Use only cold water with filter.
• If you experience a hose connection
leak, disconnect and re-seat the hose.
Turn wrench
to right;
sump to
left.
Remove top
and filter.
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.
CARE AND MAINTENANCE
Performance Data Sheet for the A. O. Smith Under Counter Water Filter
Models
Replacement
Operating pressure range Rated capacity
AOW-2000 AOW-2000-R
20-80 psi
500 gallons
137-551 kPa
1892 Liters
Manufactured by: A. O. Smith Corporation 11270 West Park Place | Milwaukee, WI 53224 | 833.232.9711
Testing Performed under NSF/ANSI Standards 42 and 53 and in accordance with the California Department of Health Services Drinking Water Treatment
Device Program. This system has been tested according to NSF/ANSI 42, 53, 401 & P473 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, 401 & P473.
NSF/ANSI 42
Min Reduction
Overall % Reduction Results
Chlorine Reduction, Free Available
<0.5 mg/l
97.66%
Chloramine Reduction, Free Available <0.5 mg/l
97.66%
Particulate Reduction
85%
99.9%
NSF/ANSI 53
Min Reduction
Overall % Reduction Results
Cyst Live Cryptosporidium & Giardia 99.95%
>99.99%
Mercury Reduction pH 8.5
<2 ug/L
>95%
Mercury Reduction pH 6.5
<2 ug/L
>96.5%
Lead Reduction pH 6.5
<10 ug/L
>99.4%
Lead Reduction pH 8.5
<10 ug/L
>99.3%
MTBE Reduction
<5 ug/L
86.6%
Turbidity
<0.5 NTU
99.1%
VOC Surrogate Test
95%
99.4%
Asbestos
99%
>99%
Maximum
NSF/ANSI 401
Minimum Reduction Overall % Reduction Results
Concentration
Atenolol
30 ng/L
94.2%
94.2%
Bisphenol A
300 ng/L
98.80%
98.9%
Carbamazepine 200 ng/L
98.6%
98.6%
DEET
200 ng/L
98.7%
98.7%
Estrone
20 ng/L
96.30%
96.5%
Ibuprofen
60 ng/L
95.3%
95.4%
Linuron
20 ng/L
96.6%
96.6%
Meprobamate
60 ng/L
94.7%
94.7%
Metolachlor
200 ng/L
98.6%
98.6%
Naproxen
20 ng/L
96.3%
96.4%
Nonyl phenol
200 ng/L
97.50%
97.5%
Phenytoin
30 ng/L
95.50%
95.6%
TCEP
700 ng/L
98%
98%
TCPP
700 ng/L
97.8%
97.8%
Trimethoprim
20 ng/L
96.7%
96.7%
Maximum
Influent challenge
NSF P473
permissible
Overall % reduction Results
concentration
concentration
Perfluorooctanoic
acid (PFOA) &
1.5 ±10% ug/L
0.07 ug/L
96 %
Perfluorooctane
sulfonate (PFOS)
System Tested and Certified by NSF International against NSF/
ANSI Standard 42, 53 & 401 and conforms to NSF protocol
P473 for reduction of claims specified on the Performance
Data Sheet and at www.nsf.org.
• 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.
Filter is only to be used
Systems certified for cyst
with cold water.
reduction may be used on
disinfected waters that may
Filter usage must comply
contain filterable cysts.
with all state and local laws.
See owner's manual for general
Testing was performed
installation conditions and
under standard laboratory
needs plus manufacturer's
conditions, actual
limited warranty.
performance may vary.
Operating temp. range Rated flow
40-90° F
.05 gpm
4.44-32.2° C
1.89 lpm
Organic chemicals included by surrogate testing
Pass
VOCs
Drinking
Influent/
(by surrogate testing
water
Unfiltered
Pass
using chloroform)
regulatory
Pass
level (MCL/
MAC) mg/L
alachlor
0.002
0.050
Pass
atrazine
0.003
0.100
Pass
benzene
0.005
0.081
Pass
carbofuran
0.04
0.190
carbon tetrachloride
0.005
0.078
Pass
chlorobenzene
0.1
0.077
Pass
chloropicrin
—
0.015
Pass
2,4-D
0.07
0.110
Pass
dibromochloropropane (DBCP)
0.0002
0.052
Pass
o-dichlorobenzene
0.6
0.080
Pass
p-dichlorobenzene
0.075
0.040
1,2-dichloroethane
0.005
0.088
1,1-dichloroethylene
0.007
0.083
cis-1,2-dichloroethylene
0.07
0.170
Pass
trans-1,2-dichloroethylene
0.1
0.086
Pass
1,2-dichloropropane
0.005
0.080
Pass
cis-1,3-dichloropropylene
—
0.079
Pass
dinoseb
0.007
0.170
Pass
endrin
0.002
0.053
ethylbenzene
0.7
0.088
Pass
ethylene dibromide (EDB)
0.00005
0.044
Pass
haloacetonitriles (HAN)
Pass
bromochloroacetontrile
—
0.022
Pass
dibromoacetontrile
—
0.024
Pass
dichloroacetontrile
—
0.0096
Pass
trichloroacetontrile
—
0.015
Pass
haloketones (HK)
Pass
1,1-dichloro-2-propanone
—
0.0072
Pass
1,1,1-trichloro-2-propanone
—
0.0082
heptachlor (H-34, Heptox)
0.0004
0.025
Pass
heptachlor epoxide
0.0002
0.0107
hexachlorobutadiene
—
0.044
hexachlorocyclopentadiene
0.05
0.060
lindane
0.0002
0.055
methoxychlor
0.04
0.050
Pass
pentachlorophenol
0.001
0.096
simazine
0.004
0.120
styrene
0.1
0.150
1,1,2,2-tetrachloroethane
—
0.081
tetrachloroethylene
0.005
0.081
toluene
1
0.078
2,4,5-TP (silvex)
0.05
0.270
tribromoacetic acid
—
0.042
1,2,4-trichlorobenzene
0.07
0.160
1,1,1-trichloroethane
0.2
0.084
1,1,2-trichloroethane
0.005
0.150
trichloroethylene
0.005
0.180
Influent/
trihalomethanes (THMs)
Unfiltered
bromodichloromethane (THM)
bromoform (THM)
0.080
0.300
chloroform (THM)
chlorodibromomethane (THM)
xylenes (total)
10
0.070
For use with municipally treated water only. Do not use with
water that is microbiologically unsafe or of unknown water
quality without adequate disinfection before or after the system.
5
Effluent/
Percent
Filtered
Reduction
0.001
>98%
0.003
>97%
0.001
>99%
0.001
>99%
0.0018
98%
0.001
>99%
0.0002
99%
0.0017
98%
0.00002
>99%
0.001
>99%
0.001
>98%
0.0048
95%
0.001
>99%
0.0005
>99%
0.001
>99%
0.001
>99%
0.001
>99%
0.0002
99%
0.00059
99%
0.001
>99%
0.00002
>99%
0.0005
98%
0.0006
98%
0.0002
98%
0.0003
98%
0.0001
99%
0.0003
96%
0.00001
>99%
0.0002
98%
0.001
>98%
0.000002 >99%
0.00001
>99%
0.0001
>99%
0.001
>99%
0.004
>97%
0.0005
>99%
0.001
>99%
0.001
>99%
0.001
>99%
0.0016
99%
0.001
>98%
0.0005
>99%
0.0046
95%
0.0005
>99%
0.0010
>99%
Effluent/
Percent
Filtered
Reduction
0.015
95%
0.001
>99%
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