New Wave Enviro 10 Stage Water Filter Replacement Cartridge Replacement filter for New Wave's water filter system produces continuous supply of fresh, crisp, wonderful-tasting water from the tap Removes major contaminants to below EPA minimum levels Easily replaced filter produces approximately 1,500 gallons of water before it needs replacing, or enough to last one year for a family of four Once water has been filtered, inert and desirable minerals like magnesium, potassium, chlorides, and fluoride are left behind Includes 30-day money-back guarantee and limited one-year manufacturer's warranty against defects in materials and workmanship