US Water Polyphosphate Filter Cartridge 2.5" x 10" | USWF-2510-PP For Home Electrode: Replaceable glass sensor and

Electrode: Replaceable glass sensor and reference tube electrodes

Engineered media for superior performance

Polyethylene construction

5" x 20" Graded-Density Sediment Depth Filter - SDC-45-2020

US Water Polyphosphate Filter Cartridge 2.5" x 10" | USWF-2510-PP For Home Electrode: Replaceable glass sensor andUS Water 2. 5" x 10" Phosphate Cartridge The cartridges contain food grade slow melt polyphosphate that dissolves slowly in water to inhibit scale and rust build up. This type of treatment is recommended for use with ice machines, coffee and vending machines, food service equipment, water heaters, air conditioning equipment and many other types of water processing equipment. All materials are FDA grade. The cartridges are effective for treating scale,