Albion Engineering 504-G07 Threaded Follow Plate for 5 Gallon Pail Threaded Follow Plate for bulk caulk loading from 5 gallon pails Follow Plate reduces the mess of bulk loading caulk, keeps gun barrel clean and prevents air from entering gun barrel during loading Fits all 2" diameter Albion threaded barrel bulk guns For use with tapered or straight-sided metal or plastic pails with a minimum ID of 9-7/8" and a maximum ID of 11-3/8"