DuraVent FasNSeal 80/90 5-3-4 B-Vent Flex FS Kit h4.125 Stock Code 18056 Size 9"

Stock Code 18056 Size 9" D x 9

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Model 670007 Clearance Zero/Zero clearance when installed into a masonry chimney and wrapped with a 1/2" ceramic fiber insulation blanket

or gas flues

4" (L x W x H)

DuraVent FasNSeal 80/90 5-3-4 B-Vent Flex FS Kit h4.125 Stock Code 18056 Size 9"FasNSeal 80 90 is a unique, patent pending system that exhausts 90+ condensing appliances with Type B atmospheric units within the same vent. Using your pre existing common vent, our cap improves the operation of both the remaining atmospheric appliances, and the new condensing unit, while not disturbing finished space during installation. Finally a solution when you need to deal with narrow lot lines, clearance to window and door openings or when