KT2000 - Pennies a gallon with the Model 2000™ Eight Stage Water Filter. The Model 2000 has received the prestigious Gold Seal from the Water Quality Association, a national independent water quality association that is not affiliated with the manufacturer of the Model 2000. This independent testing is your assurance that all claims made are accurate. Test results available through 10,000 gallons. Comes with lifetime warranty. Washable filter, no need to buy replacement filters...EVER!   7 lbs each. Item KT2000