AO-MF
Replacement cartridge: AO-MF-R
Rated service flow: 1.4 gpm (5.3 lpm)
Max capacity: 1,389 gallons (5,258 l)
Min working pressure: 10 psi (68.95 kPa)
Max working pressure: 125 psi (861.8 kPa)
Min operating temperature: 40º F (4.44º C)
Max operating temperature: 90º F (32.22º C)
Performance Data Sheet for the A. O. Smith Main Faucet Water Filter
Models
Replacement
AO-MF
AO-MF-R
Manufactured by: A. O. Smith Corporation P.O. Box 1597 | Johnson City, TN 37605-1597 | 877.333.7108
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 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 leaving the system, as specified in NSF/ANSI 42 and 53.
NSF/ANSI 42
Chlorine Reduction, Free Available
Particulate Reduction
NSF/ANSI 53
Cyst Live Cryptosporidium & Giardia
Lead Reduction pH 6.5
Lead Reduction pH 8.5
Atrazine
Lindane
Turbidity
• 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.
System Tested and Certified by IAPMO R&T lab and IAPMO R&T against NSF/ANSI Standards
42 & 53. Please refer to the Performance Data Sheet for specific contaminant reductions.
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.
NEED HELP? GIVE US A CALL 877.333.7108
Operating pressure range
10-125 psi
68.95-861.8 kPa
Min Reduction
97.5%
87.1%
Min Reduction
>99.99%
> 99.3%
> 99.3%
89.1%
97.4%
97.3%
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.
CARE & MAINTENANCE
To clean your filter unit, wipe down
the exterior with a damp cloth.
Safeguards
• Use only COLD water with filter.
• If you experience a hose connection
leak, disconnect and re-seat the hose.
Rated capacity
Operating temp. range
1,389 gallons
40-90º F
5,258 liters
4.44 - 32.22º C
Overall % Reduction
97.5%
95.9%
Overall % Reduction
>99.99%
> 99.3%
> 99.3%
93.7%
98.8%
98.7%
Systems certified for cyst reduction may be
used on disinfected waters that may contain
filterable cysts.
Read owner's manual for general installation
conditions and needs, as well as manufacturer's
limited warranty.
4
Rated flow
1.4 gpm
5.3 lpm
Results
Pass
Pass
Results
Pass
Pass
Pass
Pass
Pass
Pass