Add-on to any 3/4 in. hose connection. UPGRADE to the 50H. 3/4 in. hose thread. The first ASSE 1052 approved automatic draining double-check backflow preventer. When a hose is removed from a Model 50 equipped wall faucet or yard hydrant, two linked but independent check valves automatically move as one to open a path through the valve allowing water to drain completely and prevent freezing.
California residents: see Proposition 65 information
- Double-check - brass backflow preventer
- 50H is an add-on to any 3/4 in. hose connection
- Brass construction
- Standard 3/4 in. hose connection