Backflow Test Kits

Repair Kits

Cages / Enclosures

Backflow Assemblies

Top Customer Reviews

1 on 1 Support

Same-day shipping

30 Years Experience


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Sean at Backflow Supply is extremely knowledgeable and helpful. I called for technical advice about my backflow preventer, learned from Sean exactly what I needed to understand and then ordered several replacement parts. The entire experience was outstanding. I highly recommend Backflow Supply.

Eric Smidansky

I don’t do this at all but I am amending my review. I had been given the wrong part for my system but Shawn made it right and didn’t charge me for the new one. I was impressed with the service and willingness to make it right. He refused to charge me for the part and wanted to make sure I was satisfied. That goes a long way in my book. I was frustrated by having to make two trips from the other end of the valley but Shawn made the effort to make it right. Thank you!

Alfred Eric Blair

Sean was most helpful. I called him needing answers, which he quickly provided. I went to his store, he cleaned up some of the parts and sold me what I needed. My Backflow Assembly works like new for a fraction of the cost of a new one. Thanks

Dewayne Dean

Great service knowledge don’t matter the brand of the back flow they have answers for you I highly recommend it

Jovany Camarena

I have had the opportunity to do business at Backflow Supply three times over the last 5 years, and every time it has been a great experience. Very knowledgeable, and willing to share it. They have always had the parts I needed. If you believe in doing business local, this is the perfect place to support. A classic all American entrepreneurial small business providing customer service like it should be done! Thank yo!

Kirk Reese
Los Angeles, CA