The 3M Aqua-Pure AP817-2 whole house water filter cartridge is for use with many 3M Aqua-Pure whole house filters that use 20-inch x 4-1/2 inch water filters. It has a rigid outer shell to help capture sediment while retaining its granular activated carbon media. Whole house water filter systems are great solutions to help protect your pipes and appliances as well as offer you great tasting drinking water from anywhere in the home.

Housings do not come with water filter cartridge. Drop-in cartridges sold separately. Flow rate and reduction claims vary with drop-in water filter cartridge used.