Selkirk 3"/4" Appliance Adapter (Pellet Vent - UPP - Type L / PL)

Finish: Galvanized Steel
Size: 3-Inch

Estimated Arrival: Between and . (To All Contiguous States)

✔ Same-Day Order Processing
✔ Free Returns
✔ No Restocking Fees
✔ Financing Options Available

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Selkirk 3"/4" Appliance Adapter (Ultimate Pellet Pipe - Type L/PL)

Attach to the appliance for connection to UPP.

Pellet Vent - UPP - Type L / PL

The superior silicone gasket technology seals the system and provides a leak-free connection. Easy to assemble for safe and secure connection. Easy to disassemble for inspection and cleaning. Laser-welded inner and outer pipes ensure a consistently round pipe with a clean profile.

3" to 4" Diameters:
  • Easy to assemble
  • Laser-welded seams
  • 1 ¾" overlap at joints
  • Silicone gasket sealed
  • Smooth joint connections
  • 1" Clearance to combustibles
  • 360° Lock-Tab secure rotation
  • 304 stainless steel inner, galvalume outer
  • Available in matte black or unpainted finish
  • Pipe lengths available in 6", 12", 18", 24", 36" and 60"
  • Complete offering of painted pipe, fittings, and components
  • Lock-Tab allows for easy dismantling for inspection and cleaning


  • Listed to UL641 in the U.S.A.
  • Listed to applicable portions of UL103 in the U.S.A.

Product Code
Part No Size
823017 3UPP-AA 3-Inch (Unpainted)
824017 4UPP-AA 4-Inch (Unpainted)
823017B 3UPP-AAB 3-Inch (Matte Black)
824017B 4UPP-AAB 4-Inch (Matte Black)

CA Residents: See Prop 65 WARNING.


Lifetime Limited Warranty

Refer to the Smart Choice Warranty for full warranty details.