3P Technik Backflow Trap UNO
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Overflow Siphon Uno with Backflow Prevention is ideal for a large plastic or concrete Tank. The Duo with Backflow Prevention has a 110mm inlet for accepting dirty water that runs through to an outlet, this feature saves drilling another hole in the Tank. The Overflow Siphon is supported by the wall of the Tank, when the water level is low. The integrated Backflow Prevention prevents contamination from occurring with overflow. Using an integrated Overflow and Backflow Prevention Valve will saves having to assemble two components together which will save time and money.


  • Food grade high quality polyethylene construction
  • Perfect for outdoor water use
  • Skims the top of water in rainwater tanks
  • Overflow siphon and odor trap suction of surface water in rainwater tanks
  • Item #: 4000930

3P Technik Backflow Trap UNO

Price: $215.50
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