Deringer 20G Double Check Backflow Preventer with Gate Valves

Deringer 20G (DC) double check backflow preventer with OS&Y gate valves, sizes 2.5 - 8 inches. The shortest, lightest, most economical backflow assembly.

Deringer 20GX Double Check Backflow Preventer with OS&Y Gate Valves

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NEW PRODUCT RELEASE‼️ Backflow Direct is very excited to announce the approval and release of the next group of Deringer and Magnum Gate Valve, By Backflow Direct

Deringer 20/20G - Ames Fire & Waterworks

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Deringer 20G Double Check Backflow Preventer with Gate Valves

Deringer 20/20G - Ames Fire & Waterworks

Deringer 20G Double Check Backflow Preventer with Gate Valves

DERINGER 20GX 6 - Ames Fire & Waterworks

Deringer 20/20G - Ames Fire & Waterworks

Deringer 20G Double Check Backflow Preventer with Gate Valves

Deringer 20G Double Check Backflow Preventer with Gate Valves

Deringer 20GX Double Check Backflow Preventer with OS&Y Gate Valves

The Deringer 40G Reduced Pressure Backflow Preventer w/ OS&Y Gate Valves prevents non-health hazard pollutants from entering a potable water supply

Deringer 40G (RP)

How to Maintenance a 2 ½ - 4 Deringer 20 Double Check Backflow Preventer