Our Culligan ZeroWater 5-stage advanced water filter is where better taste meets superior water filtration. The water filter removes virtually all total dissolved solids (TDS) – think metals and salts – leaving the purest taste in every sip. Culligan ZeroWater is IAPMO-certified to reduce lead the forever chemicals PFOA/PFOS chromium and mercury giving you peace of mind that every glass you pour for you and your family will be healthier and cleaner. Plus you can help stop plastic waste and save up to 110 single-use plastic bottles per filter.