Operating Guide
Performance Data Sheet for the A. O. Smith Refrigerator/Freezer Clean Water Filter
Models Replacement Operating pressure range Rated capacity Operating temp. range Rated flow
AO-FF
AO-US-100-R 20-80 psi
1.40-5.624 kg/cm
2
200 gallons
757 liters
40-90° F
4.44-32.2° C
0.5 gpm
Manufactured by: A. O. Smith Corporation 11270 West park Place | Milwaukee, WI 53224 | 877.333.7108
Organic chemicals included by surrogate testing
VOCs
(by surrogate testing
using chloroform)
Drinking
water
regulatory
level (MCL/
MAC) mg/L
Influent/
Unfiltered
Effluent/
Filtered
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
<0.5 mg/l 96.06% Pass
Chloramine Reduction, Free Available
<0.5 mg/l 96.06% Pass
Particulate Reduction 85% 99.9% Pass
NSF/ANSI 53 Minimum Reduction Overall % Reduction Results
Cyst Live Cryptosporidium & Giardia 99.95% >99.95% Pass
Mercury Reduction pH 8.5 <2 ug/L >96.7% Pass
Mercury Reduction pH 6.5 <2 ug/L >96.6% Pass
Lead Reduction pH 6.5 <10 ug/L >99.4% Pass
Lead Reduction pH 8.5 <10 ug/L >99.3% Pass
MTBE Reduction <5 ug/L 86.6% Pass
Turbidity <0.5 NTU 99.1% Pass
VOC Surrogate Test 95% 99.4% Pass
Asbestos 99% >99% Pass
NSF/ANSI 401
Maximum
Concentration
Minimum Reduction Overall % Reduction Results
Atenolol 30 ng/L 94.2% 94.2% Pass
Bisphenol A 300 ng/L 98.80% 98.9% Pass
Carbamazepine 200 ng/L 98.6% 98.6% Pass
DEET 200 ng/L 98.7% 98.7% Pass
Estrone 20 ng/L 96.30% 96.5% Pass
Ibuprofen 60 ng/L 95.3% 95.4% Pass
Linuron 20 ng/L 96.6% 96.6% Pass
Meprobamate 60 ng/L 94.7% 94.7% Pass
Metolachlor 200 ng/L 98.6% 98.6% Pass
Naproxen 20 ng/L 96.3% 96.4% Pass
Nonyl phenol 200 ng/L 97.50% 97.5% Pass
Phenytoin 30 ng/L 95.50% 95.6% Pass
TCEP 700 ng/L 98% 98% Pass
TCPP 700 ng/L 97.8% 97.8% Pass
Trimethoprim 20 ng/L 96.7% 96.7% Pass
NSF P473
Influent challenge
concentration
Maximum
permissible
concentration
Overall % reduction Results
Perfluorooctanoic
acid (PFOA) &
Perfluorooctane
sulfonate (PFOS)
1.5 ±10% ug/L 0.07 ug/L 95.8% Pass