Caulk Gun Conversion Kit, Caulk Gun Accessory, Aluminum Barrel With Black Nozzle, Size 20.6 In. x 3.15 In. x 3.15 In., For Use With 14P347 20 oz Sausage style barrel accepts all standard 20 oz sausage material packages, Aluminum Sausage Barrel Construction, Includes Conversion Kit Includes The 20 oz Sausage Style Barrel Length Plunger Rod And Piston Assembly