This 4 Inch x 60 Inch Pellet Chimney Straight Stainless Steel Length Pipe from the PelletVent Pro series is a Type L Biofuel Chimney Pipe component
Chimney Systems - Chimney Systems - M&G DuraVent Chimney Systems
Duravent Pellet Stove Vent Pipe
DuraVent Wood & Pellet Stove Accessories at
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PelletVent® Pro - DuraVent
DuraVent PelletVent 4 in. x 60 in. Double-Wall Chimney Stove Pipe in Black 4PVL-60B - The Home Depot