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This 1/2 inch double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements
The Universal Security Instruments Electric MCND401 Plug-In Carbon Monoxide and Natural Gas Smart Alarm comes with a 5 year limited warranty
Available in 4"
Used to control back drafts
epoxy-coated to reduce chipping and peeling
SP/3W UNIV.OCC DETECTO-WHITE 18od PIR/INCAND.LED C BATTERIES This 1/2 inch double checkSP 3W UNIV. OCC DETECTO WHITE 18od PIR INCAND. LED
