Flexadux TR T-7 hose from Flexaust is a medium-weight, thermoplastic rubber hose designed for use in dust-collection and removal of fumes and vapors in woodworking operations. Reinforced with a spring steel wire helix, it can be fitted with thermally welded cuffs made of the same material. It is designed to provide a smooth clamping surface to assure a tight fit and seal, in order to prevent leaks. (800) 343-0428, Flexaust.com.