Performance Data for the Drinking Water System AO-US-RO-MB-4000
Models
Replacement
AO-US-RO-
AO-US-RO-MB-R and
MB-4000
AO-US-RO-MEM
Manufactured by: A.O. Smith Corporation 11270 West Park Place | Milwaukee, WI 53224 | 877.333.7108
Testing performed by IAPMO R&T against NSF/ANSI Standards 42, 53, 58, 401, and NSF Protocol P473 & P231 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, 58, 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, 58, 401, P473 & P231.
NSF/ANSI 42
Chlorine Reduction, Free Available
Chloramine Reduction, Free Available <0.5 mg/l
Particulate Reduction
NSF/ANSI 53
Minimum Reduction Overall % Reduction Results
Cyst Live Cryptosporidium & Giardia 99.95%
Mercury Reduction pH 8.5
<2 ug/L
Mercury Reduction pH 6.5
<2 ug/L
Lead Reduction pH 6.5
<10 ug/L
Lead Reduction pH 8.5
<10 ug/L
MTBE Reduction
<5 ug/L
Turbidity
<0.5 NTU
VOC Surrogate Test
95%
Asbestos
99%
Maximum
NSF/ANSI 58
Concentration
Arsenic Pentavalent
0.30mg/L ± 10% 80.0%
Barium
10.0mg/L ± 10% 80.0%
Cadmium
0.30mg/L ± 10% 83.3%
Chromium Hexavalent 0.30mg/L ± 10% 66.7%
Chromium Trivalent
0.30mg/L ± 10% 66.7%
Copper
0.30mg/L ± 10% 56.7%
Fluoride
8.0mg/L ± 10%
Lead
.15mg/L ± 10%
Nitrate/Nitrite
30.0mg/L ± 10% 66.7%
Radium 226/228
25pCi/L ± 10%
Selenium
0.10mg/L ± 10% 50.0%
TDS
750mg/L ± 10%
Turbidity
11 ± NTU
Maximum
NSF/ANSI 401
Concentration
Atenolol
30 ng/L
Bisphenol A
300 ng/L
Carbamazepine 200 ng/L
DEET
200 ng/L
Estrone
20 ng/L
Ibuprofen
60 ng/L
Linuron
20 ng/L
Meprobamate
60 ng/L
Metolachlor
200 ng/L
Naproxen
20 ng/L
Nonyl phenol
200 ng/L
Phenytoin
30 ng/L
TCEP
700 ng/L
TCPP
700 ng/L
Trimethoprim
20 ng/L
Influent challenge
NSF P473
concentration
Perfluorooctanoic
acid (PFOA) &
1.5 ±10% ug/L
Perfluorooctane
sulfonate (PFOS)
• 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
with cold water.
Filter usage must comply
with all state and local laws.
Testing was performed under
standard laboratory conditions,
actual performance may vary.
Operating
Operating
Recovery
pressure range
temp. range
rating
40-100 psi
40-90° F
29.43%
275-689 kPa
4.44-32.2° C
Minimum Reduction Overall % Reduction Results
<0.5 mg/l
96.06%
96.06%
85%
99.9%
>99.95%
>96.7%
>96.6%
>99.4%
>99.3%
86.6%
99.1%
99.4%
>99%
Minimum
Overall % Reduction Results
Reduction
97.6%
95.2%
95.3%
97.0%
96.6%
96.6%
81.2%
95.7%
93.3%
96.6%
82.4%
80.0%
80.0%
97.9%
75.0%
95.0%
95.4%
99.1%
Minimum Reduction
Overall % Reduction Results
94.2%
94.2%
98.80%
98.9%
98.6%
98.6%
98.7%
98.7%
96.30%
96.5%
95.3%
95.4%
96.6%
96.6%
94.7%
94.7%
98.6%
98.6%
96.3%
96.4%
97.50%
97.5%
95.50%
95.6%
98%
98%
97.8%
97.8%
96.7%
96.7%
Maximum permissible
Overall %
concentration
reduction
0.07 ug/L
95.8%
Systems certified for cyst reduction
may be used on disinfected waters
that may contain filterable cysts.
See owner's manual for general
installation conditions and needs plus
manufacturer's limited warranty.
Efficiency
Daily
rating
Production (DPR)
17.91%
13.32 gallons
50.4 liters
Organic chemicals included by surrogate testing
Pass
VOCs
(by surrogate testing
Pass
using chloroform)
Pass
alachlor
Pass
atrazine
Pass
benzene
Pass
carbofuran
Pass
carbon tetrachloride
Pass
chlorobenzene
chloropicrin
Pass
2,4-D
Pass
dibromochloropropane (DBCP)
Pass
o-dichlorobenzene
Pass
p-dichlorobenzene
1,2-dichloroethane
1,1-dichloroethylene
cis-1,2-dichloroethylene
Pass
trans-1,2-dichloroethylene
Pass
1,2-dichloropropane
Pass
cis-1,3-dichloropropylene
Pass
dinoseb
Pass
endrin
Pass
ethylbenzene
Pass
ethylene dibromide (EDB)
haloacetonitriles (HAN)
Pass
bromochloroacetontrile
Pass
dibromoacetontrile
Pass
dichloroacetontrile
Pass
trichloroacetontrile
Pass
haloketones (HK)
Pass
1,1-dichloro-2-propanone
1,1,1-trichloro-2-propanone
heptachlor (H-34, Heptox)
heptachlor epoxide
Pass
hexachlorobutadiene
Pass
hexachlorocyclopentadiene
Pass
lindane
Pass
methoxychlor
Pass
pentachlorophenol
Pass
simazine
styrene
Pass
1,1,2,2-tetrachloroethane
Pass
tetrachloroethylene
Pass
toluene
Pass
2,4,5-TP (silvex)
Pass
tribromoacetic acid
Pass
1,2,4-trichlorobenzene
Pass
1,1,1-trichloroethane
Pass
1,1,2-trichloroethane
trichloroethylene
Pass
trihalomethanes (THMs)
Results
bromodichloromethane (THM)
bromoform (THM)
chloroform (THM)
Pass
chlorodibromomethane (THM)
xylenes (total)
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.
Drinking
Influent/
Effluent/
water
Unfiltered
Filtered
regulatory
level (MCL/
MAC) mg/L
0.002
0.050
0.001
0.003
0.100
0.003
0.005
0.081
0.001
0.04
0.190
0.001
0.005
0.078
0.0018
0.1
0.077
0.001
—
0.015
0.0002
0.07
0.110
0.0017
0.0002
0.052
0.00002
0.6
0.080
0.001
0.075
0.040
0.001
0.005
0.088
0.0048
0.007
0.083
0.001
0.07
0.170
0.0005
0.1
0.086
0.001
0.005
0.080
0.001
—
0.079
0.001
0.007
0.170
0.0002
0.002
0.053
0.00059
0.7
0.088
0.001
0.00005
0.044
0.00002
—
0.022
0.0005
—
0.024
0.0006
—
0.0096
0.0002
—
0.015
0.0003
—
0.0072
0.0001
—
0.0082
0.0003
0.0004
0.025
0.00001
0.0002
0.0107
0.0002
—
0.044
0.001
0.05
0.060
0.000002 >99%
0.0002
0.055
0.00001
0.04
0.050
0.0001
0.001
0.096
0.001
0.004
0.120
0.004
0.1
0.150
0.0005
—
0.081
0.001
0.005
0.081
0.001
1
0.078
0.001
0.05
0.270
0.0016
—
0.042
0.001
0.07
0.160
0.0005
0.2
0.084
0.0046
0.005
0.150
0.0005
0.005
0.180
0.0010
Influent/
Effluent/
Unfiltered
Filtered
0.080
0.300
0.015
10
0.070
0.001
System Tested and Certified by IAPMO R&T
LAB and IAPMO R&T against NSF/ANSI
Standards 42, 53, 58 and 401. Conforms
to NSF Protocol P473 and P231 as verified
and substantiated by test data.
15
Percent
Reduction
>98%
>97%
>99%
>99%
98%
>99%
99%
98%
>99%
>99%
>98%
95%
>99%
>99%
>99%
>99%
>99%
99%
99%
>99%
>99%
98%
98%
98%
98%
99%
96%
>99%
98%
>98%
>99%
>99%
>99%
>97%
>99%
>99%
>99%
>99%
99%
>98%
>99%
95%
>99%
>99%
Percent
Reduction
95%
>99%