The best components make the best water systems. The valves, tanks, resins and components used by Crystal Water are key to the durability and performance of our equipment. The design of our systems has proven itself for over 50 years. The use of piston-seal-spacer technology has been proven to outperform and outlast designs of other systems. Our water systems are designed with only one moving part in contact with your hard water. All this adds up to a superior water system that you can depend on for many years to come. We back this claim some of the best warranties in the industry.