The Filter Index

Replacement water filter

AO-IM

AO Smith AO-IM replacement water filter — what it is and where to buy

Type
Refrigerator water
Brand
AO Smith

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The AO-IM is a refrigerator water filter made by AO Smith. Below are compatible replacement filters, the equivalent part numbers it's also sold under, and appliances known to use it. Use the buttons above to compare current prices on Amazon.

Compatible replacement filters

Equivalent & related part numbers

Appliances that use the AO-IM

  • Frigidaire FRTD2021AS
  • GE GCU23MITAFBB
  • GE GIE17GSNRSS
  • GE GIE18DTNRBB
  • GE GIE18DTNRWW
  • GE GIE18GCNRSA
  • GE GIE18GSNRSS
  • GE GIE18GTNRWW
  • GE GIE19JSNRSS
  • GE GSE25METACBB
  • GE GSG25MIMBFBB
  • GE GSG25MIMBFWW

A sample of known compatible models. Confirm your model before buying.

AO-IM — frequently asked

What does the AO-IM water filter do?
The AO-IM is a refrigerator water filter that reduces chlorine taste and odor and other contaminants from your fridge's water and ice. It should typically be replaced about every six months.
What can I use to replace the AO-IM?
You can use the genuine AO-IM or a compatible aftermarket filter. We list 3 compatible options above, and the Amazon buttons show current pricing for both the original and replacements.
Who makes the AO-IM?
The AO-IM is an OEM part associated with AO Smith. Compatible aftermarket versions are made by several third-party brands and are often less expensive.