Browse categories of Backflow Preventers Dual Check with atmospheric vent (DuC-AV) Reduced Pressure Principle (RP) Protects potable water supply from contamination due to backflow conditions. Dual Check with atmospheric vent (DuC-AV) FlowShield™ DuC-AV, Dual check backflow preventer with atmospheric vent FlowShield™ DuC, Dual check backflow preventer (sweat) FlowShield™ DuC, Dual check backflow preventer (MNPT) FlowShield™ DuC, Dual check backflow preventer (press) FlowShield™ DuC, Dual check backflow preventer (FNPT) Expand Reduced Pressure Principle (RP) FlowShield™ RP, Testable backflow preventer assembly (1/2") FlowShield™ RP, Testable backflow preventer assembly (3/4") FlowShield™ RP, Testable backflow preventer assembly (1") Flowshield™ RP, Testable backflow preventer assembly (1 1/4") Flowshield™ RP, Testable backflow preventer assembly (1 1/2") FlowShield™ RP, Testable backflow preventer assembly (2") FlowShield™, Valve seat (¾") FlowShield™, Upstream check valve Downstream check valve FlowShield™, Discharge valve assembly Expand
Dual Check with atmospheric vent (DuC-AV) FlowShield™ DuC-AV, Dual check backflow preventer with atmospheric vent FlowShield™ DuC, Dual check backflow preventer (sweat) FlowShield™ DuC, Dual check backflow preventer (MNPT) FlowShield™ DuC, Dual check backflow preventer (press) FlowShield™ DuC, Dual check backflow preventer (FNPT) Expand
Reduced Pressure Principle (RP) FlowShield™ RP, Testable backflow preventer assembly (1/2") FlowShield™ RP, Testable backflow preventer assembly (3/4") FlowShield™ RP, Testable backflow preventer assembly (1") Flowshield™ RP, Testable backflow preventer assembly (1 1/4") Flowshield™ RP, Testable backflow preventer assembly (1 1/2") FlowShield™ RP, Testable backflow preventer assembly (2") FlowShield™, Valve seat (¾") FlowShield™, Upstream check valve Downstream check valve FlowShield™, Discharge valve assembly Expand