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1/2" 9D-M3 Dual Check Valve w/ Intermediate Atmospheric VentSize: 1/2"Connections: FNPT Union x FNPT..
$ 138.78
B911, 1/2" Combo Fill Valve & Backflow Preventer (Threaded)Size: 1/2"Connections: FNPT x Sweat Union..
$ 235.85
B911S, 1/2" Combo Fill Valve & Backflow Preventer (Sweat) Size: 1/2" Connections: FNPT..
$ 193.18