Features: * Type L Pellet Vent to Selkirk Insulated Chimney Adapters are for use in connecting a Model VP Vent System into an existing Selkirk Chimney system * Galvanized * 3 inch diameter X 8 inch length What"s In The Box: * Selkirk 243248 3-Inch X 8-Inch Pellet Selk Adapter