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 mark the installation date on

mark the installation date on the filter body with a permanent marker

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

Monitor initial permeate quality and flow rate

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

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 mark the installation date onPro 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