Selkirk 4 in. D X 42 in. L Aluminum/Galvanized Steel Gas Vent Connector

The Selkirk Model EFC Expandable Flexible Gas Vent Connector is designed for use with gas-fired appliances equipped with draft hoods and other appliances listed for use with Type B Gas Vent. This Model EFC Expandable Flexible Gas Vent Connector system eliminates the need for elbows and greatly simplifies most gas appliance vent installations.