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DuraVent - Appliance Adapter/Increaser Harmon 3" - 4" (black)

Original price $368.12
Original price $368.12 - Original price $368.12
Original price $368.12
Current price $208.87
$208.87 - $208.87
Current price $208.87
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DuraVent - Appliance Adapter/Increaser Harmon  3" - 4" (black)

Use to increase vent diameters. Specifically designed for Harman Pellet Stoves.


  • Available increasing sizes : 3"
  • Designed Exclusively for Use with Harman Brand Pellet Stoves
  • Harman Stoves Utilize a Slightly larger Outlet Inner Diameter which disallows the Standard-Style Adapter from Fitting Correctly
  • High Quality Double Wall Chimney Pipe Constructed from Galvalume
  • Fit for Use with Biofuel, Oil or Pellet Fuel Types
  • UL Listed

Typical Instructions(Refer this if required)

Refer to our Typical Venting Installation drawings to select the appropriate component parts for your installation.

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