The 700XL Dual Check Valve with 1 in. male inlet x 1 in. union 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.
Several configuration options ease installation and repairs
Horizontal or vertical installation reduces installation time and associated costs
Comes standard with a union inlet connection and integral body outlet connection
Quality stainless steel springs and low-lead bronze body resist corrosion
ASSE Listed 1024
CSA certified
Meets the requirements of NSF/ANSI 61
Lead-free
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