SharkBite 1 1 4 in. x 1 in. BF 1 Series Dual Check Backflow Preventer with SharkBite Connections Item #179420 Model #B240 visit Software Security Updates in visit Software Security Updates in Ring Control Center for information specific to your device APOC® 365 is also an excellent utility mastic for use below grade in foundation damp proofing systems The Cash Acme dual check valve with integrated SharkBite connections prevents polluted water from entering the potable water supply system by preventing the reverse flow of water into supply lines and The Cash Acme Back Flow Preventer is constructed of a cast bronze body and brass union inlet connection