The Omnipure E5620-P is a 1 Micron Carbon Block Water Filter with Phosphate Scale Inhibitor. The Omnipure E5620-P Carbon Block Scale Inhibitor water filter is a replacement filter body engineered with a universal cap designed to affix to existing permanent heads. The new E-Series was designed for customers that are using existing permanent heads but would like an alternative to the replacement bodies offered. The main benefit of the E-Series is price to performance value. The Omnipure E5620-P features a friction welded cap multiple O-rings for a weepless connection durable polypropylene body and high grade filtration media. The Omnipure E5620-P Water Filter is ideal for use in commercial beverage and food service applications. The Omnipure E5620-P GAC water filter is a 1 micron block granular activated carbon filter with phosphate used to reduce cysts scale taste odor and chlorine.