Pro Products Poly Guard® Crystals - Prevent Hard Water Scale Scale & Rust Preventer Filtrex (FX10CERAMIX) 9.75"x2.75" Ceramic Coconut Shell Greencarbon Block 0.2 Micron Filter Include air check replacement when

Include air check replacement when rebuilding or servicing Fleck control valve assemblies to prevent future backflow issues and ensure complete system reliability

The Aries AF-20-3630-BB fits all standard 20-inch Big Blue filter housings with 4

75" Micron Rating 10 Nominal Filter Media NSF 42 & NSF 60 Certified Polyphosphate Capacity 25

Inlet port accepts 0

This dual-media filter uses oxidation-reduction chemistry and bacteriostatic properties to treat problem water at the whole-house level

Pro Products Poly Guard® Crystals - Prevent Hard Water Scale Scale & Rust Preventer Filtrex (FX10CERAMIX) 9.75"x2.75" Ceramic Coconut Shell Greencarbon Block 0.2 Micron Filter Include air check replacement whenPro Products Poly Guard Crystals form a protective coating on water exposed surfaces to prevent hard water scale and iron buildup in your plumbing, equipment, and appliances. NSF certified to Standard 60, this polyphosphate formula sequesters up to 12 GPG hardness and 1 GPG iron, treating 20,000 gallons per pound through compatible filter housings. SPECIFICATIONS Technical Details Manufacturer Pro Products Product Type Polyphosphate Scale Prevention