Vac Hose Adapter w/Mounting Tab, -, Hose Inside Dia. (In.) 2 1/2 in, Acetal Copolymer, Available In -, For Use With Vacuum Hose Systems in Soldering, Wet Grinding, Machining Applications Especially Mist, Graphite and Particles, Chemical Odors and Fumes except Acids and Woodworking Applications, Includes -