Ames Deringer - Shortest, Lightest Backflow Preventer

Ames Deringer™ backflow assemblies are lighter and shorter, so they're easier to handle and install. The 4" Deringer 20 is only 18.75 inches long and weighs just 42 lbs. It's built with light weight engineered polymer components, with excellent resistance to fouling, and with no cumbersome and heavy couplings. 

Save time, space, and money with the shortest, lightest, and only backflow preventer with an all stainless-steel body.