For use with M18 Cordless Caulk and Adhesive Guns, the Quart Carriage Conversion Kit accepts all standard Quart caulking tubes and cartridges. This kit includes all the components to convert material types from the 2641-21CT, 2642-21CT, and 2643-21CT caulking and adhesive guns to be able to dispense Quart sized tubes. 48081095 48-08-1095