SELKIRK DSP7AL-1 Stove Pipe, 7 in ID x 7-1/2 in OD Dia, 12 to 18 in L, Aluminized Steel/Stainless Steel, Black

Used to adjust pipe to desired length. Adjustable from 12 to 18 in, eliminating the need to cut pipe. Includes finishing band. For installed length, subtract 1-3/8 in per joint.