Aqua Pure A dual-action system built with both filtration and space-saving in mind, the 3M Aqua-Pure water filtration system fits easily beneath your sink and reduces virtually all chlorine taste, sediment, dirt and rust. An affordably priced, easy to instal system, proudly made in the USA. Get the great tasting tap water you deserve by ordering the 3M Aqua-Pure undersink water filtration system from Aqua Pure today!