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TK-7 Watts

Backflow Preventer Test Kit for Series 007, 7 and 709

Model TK-7 Backflow Preventer Test Kit is made to test the individual check modules of the Watts Series 7, 709, LF709, 007 and LF007 residential dual check and double check valve assemblies. The test kit is a water column sight tube that contains three segments of durable 7⁄16" (11mm) shatterproof tubing, two brass adaptors used to assemble the three tubing segments, and test hardware to enable testing of Series 7, 709, LF709, 007 and LF007 check modules. Model TK-7 also included a rugged simulated leather carrying case for compactness and ease of handling.


  • 7/16 inch (11mm) shatterproof tubing for durability
  • Can be used to test any double check valve backflow preventer
  • Total working height of tube is 44 inches
  • Convenient carrying case is weatherproof and mildew-proof

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Select options below to identify the UPC, Order Code, and Repair Kit for a specific TK-7