Selkirk 104325 Gas Vent Double Wall Increaser, 4" x 5", #4RV-15DW Eco_Friendly Maximum Capacity: 10

Maximum Capacity: 10

Fortified with latex and asphalt binders to strengthen bond

Size: 4' x 6'

Built-in saw stop prevents cutting into miter box

Special forged crown wedge face

Selkirk 104325 Gas Vent Double Wall Increaser, 4" x 5", #4RV-15DW Eco_Friendly Maximum Capacity: 10Selkirk 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