Clack water softeners are systems that are built with a Clack control valve. Clack control valves are renowned for their durability, long life, and ease-of-use. Aquatell is proud to incorporate a variety of Clack valves in the systems you see listed below. For each of these systems we have hand-selected the particular version of the Clack valve and matched it to the ideal media and hardware to present a system that delivers outstanding performance in the conditions it's intended for.