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Check out our latest video showing the complete process of installing a 2½”- 4" Deringer Air Gap Assembly. Primarily used indoors to protect from flooding or spraying of water onto sensitive materials, the air gap assembly covers the relief valve on the 40/50 (RP/RPDA-II) Deringer models and diverts water downward into a drain pipe that leads to a safe location. Subscribe to the Backflow Direct YouTube Channel to view this video and our entire maintenance video library! |
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Wednesday, March 16, 2016
NEW VIDEO RELEASE!!
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