Find 126 Backflow Preventers suppliers with GlobalSpec. Our catalog includes 105,709 manufacturers, 20,973 distributors and 94,433 service providers. The GlobalSpec database includes 62,210 ...

Find his work on sites like Angi, USA Today and The Pen... Backflow preventer installation costs between $105 and $1,400, with the average property owner spending $325 per backflow preventer.

Backflow preventers are assemblies with two check valves and two shut-off valves that prevent reverses in process flow. They may also include test cocks for each chamber within the assembly. Backflow ...