Vent Size
Inner Pipe	5"
Outer Pipe	8"

DuraVent DirectVent Pro Attic Insulation Shield Direct Vent Pipe For Gas Fireplaces & Gas Stoves | 58DVA-IS |

Required for installations that pass through an attic to prevent insulation and debris from accumulating near the vent. Provides 1" clearance to combustibles. Includes base w/tube, extension tube and collar.