Search·3M
Use this page to see which whole-home systems use this cartridge, review any notes we have, and open buying links once the fit looks right for your housing.
Brand
3M
This cartridge number is linked to the whole-house systems below in our reference. Confirm your model or housing appears here, then compare dimensions and rating with what you have installed.
AP811
3M Aqua-Pure carbon replacement cartridge
Replace about every 12 months
Fits these models (1)
Notes & next steps
Search again if you need a different model or part number.
OEM carbon cartridge for select AP801 / AP802 whole-house systems.