Pro Poly Guard Cartridge Rust & Scale Preventer

Features: Longevity: the cartridge alone will treat approximately 30,000 gallons of water (depending on water conditions) NSF Certification to meet NSF/ANSI Standard 60 for drinking water additives Efficiency: sequesters hard water and low levels of iron, reducing scale build up and hard water rust staining. Odorless Non-hazardous by WHMIS/OSHA criteria Consumer Note: When the cartridge reaches the 30,000 gallon capacity, do not buy a new cartridge. Instead, purchase the Pro Poly Guard Crystals to refill your cartridge again and again! View Pro Poly Guard Crystals HERE Specifications: Comes in a 6-pack of 1.5 lb size cartridges Fits a 10" standard whole house filter housing Temperature range: 40-125 F Melting point: 1200 F pH: 7 (1% solution) Appearance/Form: Glass-like/Crystals Applications: Reduces scale build up and hard water rust staining Applicable to plumbing and water-using appliances Drinking water- reduces the leaching of copper and lead into drinking water Corrosion C