Model RV is a round Type B Gas Vent that features our patented Lock-Tab locking system which provides 360 degree flexibility while maintaining security.

• Available in 3" - 8" diameters
• Aluminum inner liner
• Galvanized outer wall
• Category I appliances

Model RV Double Wall Gas Vent is the installer's choice for residential, industrial and light commercial applications.  The aluminum liner heats up quickly to promote strong draft. Galvanized outer provides protection against outdoor elements.  Product line includes DWC Double Wall Connectors and EFC Expandable Flex Connectors.

EFC 3"-4" Diameters:

• Expandable and flexible connector
• Aluminum construction
• Built-in couplers for easy connection to the appliance and Model RV
• Smart Choice warranty on all components