100 TO 500mm cowl has female end so will sit in top off you duct.
Metal Cowl, Ducting, Chimney Top, 100 - 315mm, Bird mesh, galvanised,ventilation
Rain Cowl Stove Cowl 80mm Diameter Cowl For Stoves Metal Cowl Rain Plug
Chimney Flue Liner Metal Reducer Ducting Stainless Steel Pipe Connector Adapter
Galvanised Metal Reducer Ducting Pipe Steel Connector Adaptor Chimney Flue Liner
