
Retail:
You Save: 29%

Retail:
You Save: 38%
The 3M Aqua-Pure AP431 Whole House Scale Inhibition Water Filter Cartridge is designed to reduce scale build-up on hot water-using appliances such as water heaters (standard and tank-less), clothes washers and dishwashing machines, and on plumbing fixtures like faucets, pipes, and shower heads. The AP431 is as easy to change-out as a light bulb.
3M Aqua-Pure AP431 Whole House Scale Inhibition Water Filter Cartridge Specifications:
- Part Number: AP43111
- Product Number: AP431
- 3M ID Number: 70020319276
- Application: Scale Inhibition, Whole House Water Filtration
- Filter Type: Quick Change Cartridge
- Flow Rate: 6 gpm
- Temperature Range: 40-100° F
- Pressure Range: 25-125 psi
- Inlet/Outlet Size: 3/4" NPT
- Replace every 6 months
- Dimensions: 10-1/4" x 2-3/4"
- Made with FDA CFR-21 compliant materials
- Also known as part number AP43110
The AP431 is designed for use with the following:
- AP430 Hot Water System Protector
Compatible Parts:
The Aqua-Pure AP431 is the correct replacement for the following part numbers:

Customer Reviews
It works. No issues with it as I have been using the same filter brand for the past 10 years.
Collected by Trustpilot.comDoes the job it’s supposed to do.
Collected by Trustpilot.comThe Aqua PureAP 431 filter, seems to help reduce the lime buildup ( scale ) in our appliances.
Collected by Trustpilot.comKeeps scale from forming on my boiler.
Collected by Trustpilot.comProduct works as described.
Collected by Trustpilot.comArrived quickly and $ was very reasonable.
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