138 Caulking Gun


Nuflex® Power Pro 138 is a premium gun designed for the professional. Outfitted with a full sized contourned handle for a confortable grip and ultamite precision. The all-steel construction ensures long life and reliability. The Nuflex® Power Pro 138 is compatible with all 10.1 fl. oz (300ml) sealant and adhesive tubes. For ease of use, it is equipped with a thumb action lever for dispensing control.


  • Heavy-duty construction.
  • Cartridge cradle.
  • Puncture pin.
  • Quick tension release.
  • Smooth trigger.
  • Nozzle trimmer.