The Omnipure E5715 is a 1 Micron Carbon Block Lead Reduction Water Filter. This filter also features a universal cap that fits all permanent existing heads which makes this filter easy to install and remove. This filter also aids in the removal of cysts, taste, odor and chlorine. Additional Details ------------------------------ Product description: The Omnipure E5715 is a 1 Micron Carbon Block Lead Reduction Water Filter. This filter also features a universal cap that fits all permanent existing heads which makes this filter easy to install and remove. This filter also aids in the removal of cysts, taste, odor and chlorine.