The same commercial quality that makes Pentair Everpure the overwhelming choice for water filtration in restaurants is also available for your home. The H-300-NXT is the first of its kind to be certified by NSF to NSF ANSI standard 401, to reduce pharmaceuticals that may be found in your water. The Pentair Everpure exclusive precoat filtration technology combines Micro-Pure and a unique pleated filter membrane that is 30 percent larger than the H-300 filter. Comparable to our top-selling H-300, with added benefits to help give your family peace of mind.