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Z645-4NH-G
22 bar) and the temperature range is 33 to 150 degrees F (0
stainless steel screen
UPC - 098268833096
activation module
Watts 757-QT 4 - Part of the 757 Series chat-hdpe Z645-4NH-GThis 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards and from other contaminants found at the service line
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