$155.12
It reinforces the connection between the support box and the chimney and supports the chimney pipe. This DuraPlus part securely links the support box and duct while supporting up to 35 feet of chimney pipe. This unique triple structure, which keeps things warm and cold from the outside, improves stove performance. As a result, the heating framework secures both the building and chimney from harm. Features: Triple-wall chimney Clean, smooth exterior finish 2" clearance to combustibles A 2” wide trim collar is included Use when air-cooled chimney is required Designed for installation in flat ceilings only Outer diameter is 4" larger than inner diameter For adapters, see DVL and DuraBlack section Supports up to 35’ of DuraPlus chimney pipe Not painted, but can be painted with high-temperature paint Use an adapter to attach DVL or DuraBlack to the support box Free-floating inner 430-alloy liner maintains structural integrity in chimney fires For uses with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist-lock Specifications: Size: 8" Inner Diameter Length: 8-Inch Height: 4-Inch Width: 8-Inch Inner Pipe Gauge: 27 Outer Pipe Gauge: 28 Pipe Class: Class A Vent Construction: Triple Wall Weight: 6.1 lbs. Material: Galvanized Use: Ducting and Venting Style: Repair & Replacement Fuel Type: Coal, Gas, Oil, Wood UL Listing Number: UL 103 HT Product Type: Ceiling Support Downloads: DuraPlus Installation DuraPlus Product Catalog-Section Duraplus Woodburning Best Practices DuraPlus Product Brochure .