Whistler® Fill Signal

Update with this Signal that Retrofits into the Internal End of the Vent Pipe

  • Completely Reliable and Accurate
  • Economical unit installs with special tool into the vent pipe
  • Allows you to add a whistle into an existing tank
  • Stops costly spills and prevents ruptured tanks
  • Improves delivery efficiency

  • Calibrated whistle stems allow for product expansion
  • Whistle stem may be cut for flat-style tanks
  • Patented screen keeps whistle chamber free from pipe scale and bugs

Part # Description Model #
 00401 1″ Vent Pipe WL 170
 00402 1-1/4″ Vent Pipe WL 100
 00403 1-1/2″ Vent Pipe WL 101
 00404 2″ Vent Pipe WL 102
 00412 Installation Tool WL 140

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