Selkirk 104325 Gas Vent Double Wall Increaser, 4" x 5", #4RV-15DW Autumn_Cleaning Bonds well to plywood and

Bonds well to plywood and concrete floors

stainless steel working parts

Easy to touch-up

Anodized inside and out for improved corrosion resistance

Selkirk 104325 Gas Vent Double Wall Increaser, 4" x 5", #4RV-15DW Autumn_Cleaning Bonds well to plywood andSelkirk RV round vent pipe is a Listed Type Bgas vent pipe. Its adjustable fittings and standard short lengths eliminate all cutting, fitting and special engineering. An improved joint design provides for a rapid and secure connection in seconds. The use of LockTab feature gives installers the option of engaging this tab instead of using sheet metal screws. Gas vent double wall increaser 4RV I5DW 4" x 5" Selkirk RV round vent pipe is a Listed Type