EcoPure EPW4 Universal Large Capacity Whole House Water Filter Housing - NSF Certified - Premium Filtration System - Built to Last Protect your water supply, water using appliances and plumbing fixtures from harmful contaminants such as sediment, rust, dirt, chlorine taste and odor and many more (dependent on filter selection, sold separately). BPA free system. Universal, fits most major brand large capacity whole house water replacement filters including: Whirlpool, Omni, Culligan, Filtrete, 3M, GE, DuPont and most other brands System includes: Heavy-duty opaque sump, pressure relief vent, EPW4P filter, 3/4 wrench, metal thread inserts, mounting bracket and installation guide Designed for municipal or private well water supplies. Designed, engineered and assembled in the USA. Questions? Call the EcoPure helpline at (800) 693-1138.