SV4.5LA Adjustable Flue Pipe: 77L75

The SV4.5LA Telescopic Vent Section has an effective length of from 1-1/2" (38 mm) to 6-3/4" (171 mm). The SV4.5LA is fitted with a dimpled end and a plain end with 3 pilot holes. Slip the dimpled end over the locking channel end of a standard SV4.5 vent.