SDH Series static dissipative vacuum hose is extruded from specially formulated thermoplastic polyurethane reinforced with a plastic helix and a built-in copper grounding wire. Suitable for material transfer and fume extraction applications, vacuum hose has a smooth interior, is clear, free of fillers, does not outgas and operates from -20 to +180°F. Highly flexible and abrasion resistant, this hose is inherently static dissipative and comes in ¾” to 4” ID sizes in standard 25 and 50 foot lengths. Hi-Tech Duravent 400 E. Main St. Georgetown, MA, 01833