Marketing InformationThis pre-assembled system is engineered to meet the flushing requirements of tankless water heaters. An internal, reusable filter sock captures debris removed from the pipe system. A durable, air-filled 1/6 hp submersible pump and 3/4 in stainless steel braided flush lines ensure quality and reliability for years of trouble-free performance. Recommended by professionals job after job, this system is an ideal and economical tool for plumbing contractors who install and service tankless water heating systems.