Dye Testers, Fluorescent Yellow (Display Pack of 40)

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The most economical way to buy Dye Testers. Great for larger service departments or retail sale.

These convenient syringe style testers are charged with a special concentrated dye that holds together underwater. 6" plastic "needle" 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.
  • Can be re-filled with Leakmaster Dye available in 8 oz. bottles.