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A.O. Smith AO-MF-B Single-Stage GAC Under Sink System


Retail: $42.99 /ea
You Save: 14%
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Retail: $42.99
You Save: 14%
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Improve the taste of your drinking water right from the tap inside your home with the A.O. Smith AO-MF-B Single-Stage GAC Under Sink System. The AO-MF-B features push-in fittings and a pressure-relief button that makes installing and replacing the granular activated carbon (GAC) filter easy. This system is ideal for reducing chlorine taste and odor from your tap water. NSF Standard 42 certified, this system includes 1 filter housing, 1 granular activated carbon (GAC) filter (AO-MF-B-R), and 1 wrench. Start enjoying better tap water today with the A.O. Smith AO-MF-B Single-Stage GAC Under Sink System.


  • Brand: A.O. Smith
  • Part Number: AO-MF-B
  • Filter Life (Months): 6
  • Filter Life (Gallons): 200
  • Filter Media: Granular Activated Carbon (GAC)
  • Dimensions: 12.8" H x 5.39" W x 5.39" D
  • Flow Rate: 1 GPM
  • Operating Pressure: 125 psi
  • Operating Temperature: 40-100°F
  • NSF Certification(s): Standard 42

Compatible Filter Models:

The A.O. Smith AO-MF-B is the correct replacement for the following filter models:

  • A.O. Smith AO-MF-B-R GAC Under Sink Replacement Filter

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