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When you know your system or housing model number, this page lists the replacement cartridges we match to it—compare length, diameter, and micron rating before you order.
Brand
3M
Model AP802
3M Aqua-Pure dual-stage whole house system
Series: Aqua-Pure
These cartridge numbers are matched to this system model in our reference. Compare length, diameter, and micron rating with the filter you’re removing or your housing specs before ordering.
Primary part on file
AP810
3M Aqua-Pure sediment replacement cartridge
Replace about every 6 months
AP810 is the part shown first for model AP802; match that part number before checkout.
Why this part
- 2 mapped replacement cartridge options for this whole-home system model in our reference
- Notes available for this part
- When a BuckParts Verified Link appears below, we checked that retailer product page against this part number. Compare it with your old filter before ordering.
Replacement cartridge fit for this system model is based on our reference data.
BuckParts Verified Links
A place to buy that BuckParts has checked against the part, listing, and evidence we trust. Not every filter page has one—we only show a link when our checks clear for this part number.
Shown as a BuckParts Verified Link after we checked the product page against this filter number (2026-04-23).
All details for this part (notes, compatible models, BuckParts Verified Links when listed)
Other parts that also fit this model
Less common crosses — open each for full part details.
Notes & next steps
Search again if you need a different model or part number.
Typically AP810 (sediment) plus AP811 (carbon) on OEM dual-stage AP802 installs — confirm series.