Phosphate Replacement Cartridge contains a pure food grade phosphate that dissolves in water at a slow, controlled rate. The phosphate is highly effective at controlling rust and corrosion by forming a protective coating on the inside surface of piping and water heaters. Also, a small amount of soluble iron in a water supply may be treated, minimizing red water and iron staining.
Commonly sold under several "brand" names,
The Pentek, Ametek, US Filter PCC-1 same product as part number WPCC by American Plumber, or Pentek 155100-43. And sold as Poly Guard from Pro Products
Standard Shipping only on this product ( UPS Ground ). Always IN STOCK for same business day shipping.
