The 3M Aqua-Pure AP430SS system installs BEFORE the hot water heater in order to filter the water before it reaches the hot water heater.
This scale inhibitor system is equipped with a durable and anti-rusting 304 stainless steel adapter. Besides, its food-grade and BPA-free materials safeguard healthy water. Please note - this system is NOT a regular pre-filter. So it doesn't force all the water through the filter like a normal filter. Only a portion of the source water will flow through the filter to absorb food-grade polyphosphates for better filtration.
Waterdrop B-WD-AP431-3 Under Sink Water Filter Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Pack of 3
Aqua-Pure 3M-Aqua Pure Whole House Scale Inhibition Inline Water System AP430SS, Helps Prevent Scale Build Up On Hot Water Heaters and Boilers- Pack of 6 : Tools & Home Improvement
Tier1 10-GPM Whole Home Catalytic Hard Water Conditioner
The Aqua-Pure AP430 Hot Water Filter System comes with the AP431 Filter Cartridge. The AP431 will extend the life of your hot water heaters or
3M Aqua-Pure AP430 Whole House Scale Inhibition System 6-Pack
Aqua Pure Scale Inhibition System
AQUACREST Replacement for Aqua-Pure AP430SS Hot Water filter
3M Aqua-Pure - 6 GPM Max Flow Rate, 3/4 Inch Pipe, Replacement Cartridge Hot Water Scale Inhibitor Water Filter System - 07426547 - MSC Industrial Supply
3M Aqua-Pure Polyphosphate Whole House Replacement Filter at
Aqua-Pure Scale Inhibition System: 2 Years Later
Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 : Tools & Home Improvement
AquaPure 3M Purification Replacement Water Filters - CUNO