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Ames Deringer lightweight backflow assemblies save time, space, and money. They are the lightest, shortest, and only all stainless steel backflow assemblies in the industry.

Deringer Backflow Preventers are easy to install and ship right to your job site. Our lightweight backflow assemblies save time, space, and money.

Ames Deringer™ backflow assemblies are lighter and shorter, so they're easier to handle and install.

Ames Deringer backflow assemblies are the shortest, lightest, and only backflow preventer with an all stainless-steel body.