Pro Products Poly Guard® Crystals - Prevent Hard Water Scale Scale & Rust Preventer Size:3 lb bottle 500 GPD flow rate at

500 GPD flow rate at specified test conditions for reliable system design

Engineered carbon density maintains flow rates while maximizing filtration efficiency

The sweat connection is preferred in installations with existing copper supply lines where a permanent

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

Genuine OEM replacement piston for Fleck 5600 SXT

Pro Products Poly Guard® Crystals - Prevent Hard Water Scale Scale & Rust Preventer Size:3 lb bottle 500 GPD flow rate atPro 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