This Aluminum Male Adapter with 4" Inner Diameter from the Round Gas Vent series is a Type B gas component and consists of the duralock system for a tight seal. Use to connect existing DuraVent Type B Gas Vent to a listed Type B Gas Vent system manufactured by other companies. Male adapter can also be used to attach to DuraFlex AL.
- Fuel Type: Gas, Liquid Propane
- Inner Diameter: 4"
- Height: 6"
- Double Wall Construction
- UL Listed