DuraVent DirectVent Pro 18 Inch Pipe Length - Black Direct Vent Pipe For Gas Fireplaces & Gas Stoves | 58DVA-18B |

Designed for appliances tested and listed for direct vent. Features a fully unitized twist-lock construction in 5" x 8" vent sizes. Use of sealant is optional, unless specified by the appliance manufacturer. To calculate install length, subtract 1 1/2" for each joint. No beads or hems. Black pipe lengths feature exterior laser-welded seams.