Deringer

Deringer

Deringer is a backflow preventer manufacturer. They produce all types of backflow preventers including double check valve assemblies, double check detector assemblies, reduced pressure assemblies, and reduced pressure detector assemblies. Some of their most popular models are the Model 20, Model 20X, Model 30, Model 30X, Model 40, Model 40X, Model 50, and Model 50X.

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