Phosphate Refill Crystals - 1.5 lb. bottlePPC1
Food-grade hexametaphosphate that dissolves slowly in water to inhibit scale and rust build-up. Recommended for use with ice machines, coffee and vending machines, food service equipment, water heaters, air conditioning equipment and many other types of water processing equipment. Effective for treating scale, corrosion and iron problems for up to six months at various flow rates and feed concentrations.