EXAIR's Threaded Line Vac air operated conveyors convert ordinary pipe into a powerful conveying system for parts, scrap, trim and other bulk materials. The Threaded Line Vac attaches easily to plumbing pipe couplers, making it easy to build a complete system using ordinary pipe and fittings. Models from 3/8 to 3 NPT are available in aluminum, type 303 stainless steel, and type 316 stainless steel. Performance is the same as our standard Line Vac. No moving parts or electricity assures maintenance free operation.