Features and Benefits:?20 oz sausage style barrel accepts all standard 20 oz sausage material packages?Clear tube design allows the user to see remaining material and watch for bag wrap or blow back?For use with all M18? caulk and adhesive guns?Easy to useFor use with M18? cordless caulk and adhesive guns. This kit includes only the 20 oz clear barrel. The 20 oz sausage style plunger rod and piston assembly are sold with the 48-08-1094 clear barrel conversion kit. This kit includes the necessary component to convert barrel styles from the 2642-21CT 20 oz aluminum barrel sausage style caulk and adhesive gun kit to a clear barrel.