Omnipure E5715-P Scale Lead Cyst E-Series Water Filters Everpure Permanent Filter Heads.Omnipure E5715-P E-Series Water Filter Contaminant Reduction: Chlorine Reduction: Class 1. Reduces: Cysts (Cryptosporidium and Giardia). Reduces: Scale. Reduces: Lead.Omnipure E5715-P E-Series Water Filter Specs: