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The 3M AP431 Hot Water System Protector Filter will extend the life of your hot water heaters or tankless hot water sytems by stopping scale build-up and corrosion. The AP431 water filter cartridge used with the AP430 Hot Water System Protector not only increases the efficiency of your hot water sytems so they run cleaner, but it also saves you money on maintenance costs.

Filter Specifications:

• Part Number: AP43111
• Model Number: AP431
• Stops scale build-up
• Stops corrosion
• Replace every 4 to 6 months
• Also known as part number AP43110

The AquaPure AP431 in-line scale inhibitor system water filter should be replaced every 4 to 6 months. The AP431 is also known as AP43110.