DuraBlack Slip Increaser with Trim for the Wood Stoves and Coal Stoves, this wood stove parts is universal and may be compatible with other fuel types. Use to adapt from 6” DuraBlack to 8” DuraTech, DuraPlus, or DuraLiner at the ceiling support box or finishing collar. Adds 5” - 15” of length.

Note: When installed with DuraTech Premium or DuraTech Canada, do not use trim collar