EcoPure EPW2B Whole House Replacement Filter, White Premium filtration: certified to reduce sediment, sand, dirt, and rust down to 5 microns Protect your water supply, water using appliances and plumbing fixtures from harmful contaminants 3 month filter life - for best filtration results replace your whole home filters every 3 months Fits inside most major brand filter housings including: Whirlpool, Omni, Culligan, Filtrete, 3M, GE, DuPont and numerous others