The Hydrotech Aquafier® Multi-Stage Carbon Filtration Drinking Water Systems use advanced technology for effective water treatment at the point-of-use. Hydrotech offers three different Aquifier Water Treatment System models: the standard system, Smartap® Push Button flow monitored system and the Smartap® Faucet flow monitored system. All Hydrotech Aquafier® models feature a patented one piece, injection molded manifold, carbon block filtration, quick connect fittings and color coded tubing and are backed by a two year limited warranty. NSF LISTED Hydrotech Aquifier systems are certified to effectively reduce turbidity, filterable cysts, volatile organic chemicals (VOCs), lead and chlorine up to 1750 gallons on monitored models. LIMITED TO QUANTITIES ON HAND. THE AQUIFER WAS A USA MADE SYSTEM, WE HAVE MANY NSF CERTIFED MODELS IN STOCK. IT HAS BEEN DISCONTINUED AS HYDROTECH HAS STARTED MAKING SYSTEMS IN CHINA. THIS IS THE LAST OF THE USA MADE STUFF!!!