Vacuum Hose Rectangular Nozzle Antistatic Hose Inside Dia (In.) 2-1/2 6 in x 3 1/2 In. Acetal Copolymer 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