Mr. Nozzle™ 2-5/8" O.D. to 2-1/4" I.D Vacuum Hose Adapter fits some rigid and Craftman Vacuum models. Please measure prior to purchasing. Connects any 2-5/8" I.D. wet/dry vac to Mr. Nozzle Vacuum hose with Part #MN05 Wet/Dry Vac Tank Adapter. Made of Polystyrene. Perfect for a variety of industries including; car wash, RV/boat detailing, woodworking, automotive, janitorial, commercial, industrial, and residential.