Pro Products GP10C Poly Guard Scale and Rust Preventer (1 Filter)

Pro Chemicals GP10C Poly Guard Crystals Hard Water Scale Prevention. Pro Products GP10C is made in the USA. Poly Guard GP10C is typically administered through our patented refillable cartridge. This cartridge is compatible with most 10-inch filter housings and will treat up to 30,000 gallons of water, lasting up to six months. Pro Products GP10C can be used with Water Heaters, Ice Machines, Water Coolers, HVAC Equipment, Coffee Machines, Vending Machines, Food Service Equipment, Restaurants, Water Purifying Equipment, Refrigeration Equipment, and Water Processing Equipment. Pro Products Poly Guard sequesters up to 12 Grams Per Gallon (200 PPM) Hardness and 1 PPM Iron. One pound of crystals will treat 20,000 gallons of water. The Pro Products GP10C Filter cleans and maintains water-using appliances and restores pressure in scale clogged pipes. UPC: 10018125002622. GP10C Poly Guard Crystals prevent hard water scale and iron buildup in water systems, equipment, and appliances by forming a protective coating on the surface areas with continual exposure to water. Pro Poly Guard is NSF Certified to meet NSF/ANSI Standard 60 for drinking water additives.