One (1) Anderson LeakMaster PreFilled BLUE Dye Tester. (New still in packaging) Convenient syringe style dye tester is charged with a special BLUE concentrated pool dye that holds together underwater. The six inch plastic "flexible needle extension" allows for precise dye placement without creating unwanted currents. • Identify the precise location of structural pool leaks • Identify water movement into or out of pipes Manufacturer Part #: DT601 Item # ANDDT601
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