Deringer 20 Double Check Backflow Prevention Valve (DC)

The Deringer 20 (DC) is available in sizes 2 - 8 inches. It's the shortest, lightest, most economical backflow assembly on the market! Available online.

Deringer Xtreme Performance Backflow Assemblies have a larger body and check valves than our other Deringer backflow preventers, this gives you a huge

Deringer 20X (DC)

The Deringer 20G Double Check Backflow Preventer w/ OS&Y Gate Valves prevents non-health hazard pollutants from entering a potable water supply system

Deringer 20G (DC)

Deringer 30X Double Check Detector Backflow Device

Deringer 20 Double Check Backflow Prevention Valve (DC)

D220W-D220CW Double Check Valve - DZR Brass - Crane Fluid Systems

NEW AMES DERINGER 20 3" Double Check Valve Backflow Preventer

NEW AMES DERINGER 20 3" Double Check Valve Backflow Preventer

Backflow Direct: 2015

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