- 
              3" Diameter, 3" to 4" Increaser, Pellet Vent, Selkirk - 3VP-I4Selkirk$107.423VP-I4 is a 3" Diameter, 3" to 4" Increaser, Pellet Vent from Selkirk. Model VP is the DIYer's pellet vent of choice for a safe, efficient and cost-effective venting system. It has been engineered specifically for wood pellet burning appliances...
- 
            3" Diameter, Increaser 3" to 4", Galvanized, Pellet Vent, Selkirk - 3UPP-I4Selkirk$166.913UPP-I4 is a 3" Diameter, Increaser 3" to 4", Galvanized, Pellet Vent from Selkirk. Direct Temp is designed for aesthetic-minded hearth professionals for approved appliances. 304 Stainless steel inner liner providing exceptional corrosion resistance for...
- 
              Increaser 3" - 4" [Galvalume], PelletVent Pro - 3PVP-X4Duravent$137.273PVP-X4 is a galvalume 3 inch to 4 inch increaser for a PelletVent Pro pipe. This is an OEM DuraVent venting component.
- 
              2" - 3" Fresh Air Increaser [Galvanized], PelletVent Pro - 3PVP-INCDuravent$99.603PVP-INC is a galvanized two inch to three inch fresh air increaser for use with PelletVent Pro pipe. This is an OEM DuraVent venting component.
