DuraVent PelletVent Pro Adjustable Pipe Extension (3" or 4")
Precision Length Adjustment for Pellet Stove Venting Systems
This adjustable PelletVent Pro pipe extension fine-tunes pellet stove vent length for clean, code-compliant installations where rigid pipe alone won’t fit.
Key Features
- Designed for PelletVent Pro venting systems
- Adds 3"–46" of adjustable length depending on model
- Twist-lock, unitized construction
- 1" clearance to combustibles (USA & Canada)
- Available in galvalume or black finish
Product Features
Adjustable Pellet Vent Length for Tight Installations
This adjustable pipe extension allows installers to dial in exact vent lengths when rigid pellet vent pipe sections don’t align perfectly—ideal for offsets, wall penetrations, and ceiling transitions.
Collapsible Design for Precise Fit
Unlike telescoping pipes, this extension slides over an existing rigid section to create adjustment. It does not self-adjust, ensuring a secure, controlled fit when properly installed.
PelletVent Pro Twist-Lock Compatibility
Built with fully unitized twist-lock connections, this adjustable pellet vent pipe integrates seamlessly with other DuraVent PelletVent Pro components.
Code-Compliant Clearance & Installation Flexibility
Listed for 1-inch clearance to combustibles and approved for vertical or horizontal pellet stove venting, making it suitable for residential installations in the U.S. and Canada.
Durable Double-Wall Construction
Features a stainless steel welded-seam inner wall for corrosion resistance and a galvalume welded-seam outer wall for long-term durability and structural integrity.
Product Specifications
General Specifications
| Specification |
Details |
| Product Line |
PelletVent Pro |
| Manufacturer |
DuraVent |
| Product Type |
Adjustable pipe extension |
| Compatible Pipe Sizes |
3" or 4" |
| Clearance to Combustibles |
1" (USA & Canada) |
| Installation Orientation |
Vertical or horizontal |
| Adjustment Method |
Collapses over another existing rigid pipe |
| Inner Wall Material |
Stainless steel (welded seam) |
| Outer Wall Material |
Galvalume steel |
| Outer Diameter (OD) |
Pipe diameter + 5/8" |
| Available Finishes |
Galvalume or painted black |
| Installed Length Calculation |
Subtract 1 1/2" from the listed pipe length |
| Adjustment Note |
Pipe does not self-adjust; it collapses over another rigid section |
Adjustable Length Ranges
| Nominal Pipe Length |
Adjustable Range |
| 12" |
3" – 10" |
| 18" |
3" – 16" |
| 48" |
4" – 46" |
3" PelletVent Pro Adjustable Pipe
| Size |
Finish |
Order # |
Stock # |
Adjustable Range |
| 3" |
Galvalume |
3PVP-12A |
810001050 |
3" – 10" |
| 3" |
Black |
3PVP-12AB |
810001051 |
3" – 10" |
| 3" |
Galvalume |
3PVP-18A |
810001052 |
3" – 16" |
| 3" |
Black |
3PVP-18AB |
810001053 |
3" – 16" |
| 3" |
Galvalume |
3PVP-48A |
810001054 |
4" – 46" |
| 3" |
Black |
3PVP-48AB |
810001055 |
4" – 46" |
4" PelletVent Pro Adjustable Pipe
| Size |
Finish |
Order # |
Stock # |
Adjustable Range |
| 3" |
Galvalume |
3PVP-12A |
810001050 |
3" – 10" |
| 3" |
Black |
3PVP-12AB |
810001051 |
3" – 10" |
| 3" |
Galvalume |
3PVP-18A |
810001052 |
3" – 16" |
| 3" |
Black |
3PVP-18AB |
810001053 |
3" – 16" |
| 3" |
Galvalume |
3PVP-48A |
810001054 |
4" – 46" |
| 3" |
Black |
3PVP-48AB |
810001055 |
4" – 46" |
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