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Your cart is empty.The 700XL Dual Check Valve with 1/2 in. female union inlet x 1/2" female outlet is used in low hazard applications on potable water lines to protect against both backsiphonage and backpressure of polluted water. A non-testable device, the 700XL can be installed horizontally or vertically so long as no part of the unit is submerged and will provide protection where a potential health hazard does not exist. The quality stainless steel springs and low-lead bronze body resist against corrosion and the valve is ASSE Listed and CSA Certified.
Jon Belanger
Reviewed in the United States on March 5, 2024
100%satisfied. Used for dual domestic water sources on tankless coil
engineer
Reviewed in the United States on April 18, 2024
only half inch female ends. if using for in line for salon chairs need to reduce to 1/2 male(pipe thread) to 3/8 male compression fitting. need a 3/8 to 3/8 compression to put this in the line.
Kelly F.
Reviewed in the United States on January 3, 2023
These dual check valves by Zurn are of high quality and last a long time without leak through. They are well designed and with the union can be opened to clean both check valve cartridges and then easily reassembled after cleaning easily. The body is lead free brass or bronze so can be used in potable water systems. For the quality the price is right. If you need a dual check valve you can trust ones made by Zurn Wilkins.
Mark Twain
Reviewed in the United States on April 9, 2018
Got us through the state and fed inspections.
chuck
Reviewed in the United States on April 14, 2017
ordered several for my company. These checkvalves are for industrial use which means they will last. I will order more. it's now april 2017 and I am ordering six more for my company.
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