The HellermannTyton 166-32003 is an LTSH galvanized steel conduit with a thermoplastic cover in black, providing mechanical protection to cables, tubing, and electrical wiring. It has a 20mm diameter and is sold on a 25m reel, made with a spiral wrap, sleeves, and robust conduit construction. The conduit is provided with a short outrigger, allowing the installer to join conduit pieces with the same diameter. The galvanised steel construction is strong and hard-wearing, providing plenty of mechanical protection to its contents. The thermoplastic cover, meanwhile, is resistant to weather, wear, and water penetration. It helps keep dirt and dust away from the wiring, and can protect both the conduit itself and its contents from electrical hazards such as short circuits. The 25m reel length allows for quick and easy installation in many spaces, and it can even easily be cut to size if necessary.