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.

Magnum hi-res stock photography and images - Alamy

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

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

Ames Deringer

Deringer 20/20G - Ames Fire & Waterworks

Deringer 30GX Double Check Detector Backflow Assembly

Ames Deringer Model 20 6 – 8 Double Check Valve Assembly Repair Video

Deringer 20G Double Check Backflow Preventer with Gate Valves

Backflow Direct Backflow Preventer Supplier

Deringer 30X/30GX - Ames Fire & Waterworks