Pro Products Poly Guard® Crystals - Prevent Hard Water Scale Scale & Rust Preventer Size:3 lb bottle Engineered carbon density maintains flow

Engineered carbon density maintains flow rates while maximizing filtration efficiency

Flush the filter for 3-5 minutes before use to remove carbon fines

Relton has manufactured professional-grade drilling tools for plumbers and installers since 1947

Standard cut depth

Pro Products Poly Guard® Crystals - Prevent Hard Water Scale Scale & Rust Preventer Size:3 lb bottle Engineered carbon density maintains flowPro 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