Imperial uPVC Corrugated Flexible Electrical Conduit System are produced under strict quality control and testing procedures. Even before production, all raw materials and additives are pre-tested. Made of electrically non-conductive material, it is also self-extinguishable thus most ideal in places where fire precaution is important. Rust-proof and highly-resistant to a wide range of chemicals, it boasts of a smooth inner surface that enables easy and fast wire pulling.