6-8 Durablack Slip Increaser (1860)

Durably crafted with 24-gauge steel, the DuraBlack Single-Wall Chimney Stove Pipe Slip Increaser completes your venting system when used with one of DuraVent’s chimney products such as DuraTech, DuraPlus or DuraPlus HTC. This increaser helps adapt a 6 in. DuraBlack pipe to an 8 in. support box, adding 5–15 in. to your vertical installation length. Offering an economical, drip-free, single-wall stove pipe solution, the DuraBlack system is constructed with die-formed end fittings and features adjustable lengths that eliminate the need for cutting and crimping.

• 24-gauge frame offers lasting durability
• Used for adapting a 6 in. DuraBlack pipe to an 8 in. support box
• Adds 5–15 in. to the length of your installation
• Designed for vertical installation
• Welded seam provides leak resistance
• DuraBlack offers a limited lifetime warranty