We started in 2012 as a small team designing and manufacturing a backflow prevention line that would later be called the Deringer. Today, the Deringer product line is known as the smallest, lightest, and only all stainless steel backflow prevention valve on the market – and they’re built right here in the USA.
Over the years, we’ve continued to design shorter, lighter, and better performing products that you can rely on. That’s why our backflow preventers and every other product we carry are all safety certified, so you can rest assured knowing you have a reliable, high-quality product.
- All of our Products Have Been Fully Certified (UL, FM, ASSE, CSA, NSF, USC) in Backflow Prevention
- Six issued U.S. Patents in Backflow Prevention
- Three U.S. Patents Pending in Backflow Prevention
136 Verified Customer Reviews
136 Customer Ratings and Reviews
Shopper Approved collects trusted reviews from customers who have made a verified purchase.
4.7
Overall Star
Rating
5-star reviews
About this Company
We started in 2012 as a small team designing and manufacturing a backflow prevention line that would later be called the Deringer. Today, the Deringer product line is known as the smallest, lightest, and only all stainless steel backflow prevention valve on the market – and they’re built right here in the USA.
Over the years, we’ve continued to design shorter, lighter, and better performing products that you can rely on. That’s why our backflow preventers and every other product we carry are all safety certified, so you can rest assured knowing you have a reliable, high-quality product.
- All of our Products Have Been Fully Certified (UL, FM, ASSE, CSA, NSF, USC) in Backflow Prevention
- Six issued U.S. Patents in Backflow Prevention
- Three U.S. Patents Pending in Backflow Prevention
DANA K.12/16/2021
GREAT CUSTOMER SERVICE
Company Response
IGNACIO R.09/13/2023 , CA
good
Jacob E.03/24/2022 , TX
Fast and easy as always this is what we need more of in the fire protection industry.
Barbara B.03/16/2022 , CA
Long hold time but great customer service after I got a rep online.
Randolph F.03/14/2022 , GA
Looks like you have the product to solve my problems
Tony J.12/29/2021
These guys are the Best!
Company Response
Kevin R.12/26/2021 , NY
Slick Device
Company Response
1 Product Review
Tomislav M.12/25/2021
Great product, ships fast. As long as Katherine is there, things work really well.
Company Response
James B.12/20/2021
Web site and ordering was simple and easy
Company Response
Edward W.12/17/2021
Seems easy
Company Response
Raymond Z.12/14/2021
it is good
Sara B.12/09/2021
Registration and account set up was super easy!
Company Response
Nick C.12/08/2021
good so far
Company Response
Carnia Y.12/01/2021
Easy to order
Matt M.11/30/2021 , Ohio
Overall good experience
Mike D.11/29/2021 , NM
Thank you for your help Katherine!!
Company Response
11/29/2021
Very pleased with Deringer and the super fast delivery! I will continue to order from Deringer. Thanks!
Tomislav M.11/12/2021
Thanks!
Tony J.11/02/2021
Amazing Valves
Company Response
Rob10/28/2021
Love the ability to buy online!
09/22/2021 , CA
Best and fast service. Katherine Hartsgrove replied to us quickly when I had an issue.
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