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Sentinel Backflow preventer Plumbing

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Sentinel 
3-in ABS Backflow preventer

3.8
5
  • •CSA APPROVED - Sentinel is the only consumer Backwater Valve on the market that is CSA APPROVED PRODUCTt
  • •PLEASE MEASURE BEFORE BUYING Fits 3" (75mm) Floor Drain and 4" (100 mm) Floor Drain with Included Adapter.
  • •Sits in an open position so normal drainage can occur device will close in the event of a backflow occurrence
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