Selkirk 12"/18" Adjustable Pipe Length (Round - Type B Gas Vent) Size:5"x12" H 18 7⁄8 in x

H 18 7⁄8 in x W 25 7⁄8 in x D 9 3⁄8 in

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Selkirk 12"/18" Adjustable Pipe Length (Round - Type B Gas Vent) Size:5"x12" H 18 7⁄8 in xSelkirk 3" to 8" Diameter, 12" & 18" Adjustable Pipe Length Used in combination with a straight length, this component assures that an exact required vent length can be achieved. Allows for easy disassembly and can absorb the linear expansion of longer pipe lengths. 12" Length adjusts from 3 1 2" to 10 1 2". 18" Length adjusts from 6" to 16". (RV) Round Type B Gas Vent Model RV Double Wall Gas Vent is the installer's choice for residential, industrial