The co-extruded thermoplastic rubber hose that contains no wires, is moisture-, chemical- and crush-resistant, and has a tight bend radius for use in confined spaces. The thermoplastic rubber hose features a smooth interior and a rigid polypropylene exterior helix that resists abrasion and crushing. Ideally suited for fume and dust removal, where moisture and chemicals are present, this rugged and flexible hose operates over -60 degrees F to 275 degrees F range. Available in 4-inch to 12-inch I.D. sizes and standard 25 ft. lengths, The hose is offered in black, black with a high-visibility yellow helix, and in optional custom OEM colors.