Cash Acme 21575-0000LF Continuous Type 3/4-Inch Backflow Preventer with Atmospheric Vent And Female Union Inlet And Outlet, Lead Free Internal strainer screen and stainless steel springs Suitable for hot (up to 180 Degree [82 Degree]) or cold water under continuous pressure The BFP Series is certified to ASSE 1012 and CSA B.64.3