The 1 in. 350FT Double Check Valve Assembly with integral male 45° flare SAE test fitting is used in low health hazard, non-potable water applications for protection against both backsiphonage and backpressure of polluted water. A favorite for irrigation contractors, the patented and innovative EZSwap removable pressure vessel allows for simple, cost-effective maintenance and repairs, straightforward line flushing, quick winterization, and water savings. Its stainless steel shut-off valve handles, hardware, and struts are corrosion-resistant and the durable UV resistant reinforced nylon EZSwap Pressure Vessel resists corrosion and mineral build-up to better withstand harsh outdoor conditions.
Flush Tool (FLUSH) provides easy line flushing, saving up to 15 minutes per installation
EZSwap removable pressure vessel reduces repair time and costs, and is serviceable off-line
Design ensures water savings
Stainless steel and durable, UV-resistant reinforced nylon construction offers corrosion-resistance and quick winterization
Reduced labor and repair kit costs save 75% or more during backflow lifecycle
ASSE Listed 1015
CSA Certified B64.5
AWWA Compliant C510
Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
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1 in. Double Check Backflow Preventer
Inlet Diameter (In.)
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Compatible Pipe Material
Female Pipe Thread
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out of 3 reviews
100% recommend this product
Showing 1-3 of 3 reviews
May 31, 2020
Leaks on second season
Purchased 2 of these over past 4 years and both have developed leaks. First one leaked in main housing second one leaking in ball valve housing. Backflow is indoors so weather is not a factor in failure
1 person found this helpful
May 20, 2020
5 Star Review
Rating provided by a verified purchaser
Oct 7, 2019
I was very pleased with my order through Home Depot. Hassle free and received the item in just a ...
I was very pleased with my order through Home Depot. Hassle free and received the item in just a few days after ordering. I am very pleased with the back flow after I installed it. I would definitely recommend this product to anyone for their irrigation system.