16mm flexible conduit id 12mm od 18mm Supplied in 30M coils. A liquid tight conduit system with smooth outer PVC sheath allowing complete sealing of fittings to conduit. Excellent resisitance to sudden temperature variations and has a high crush resistane grading. Colour black. Construction Internal double metallic clutch manufactured from galvanised sheet steel. External PVC over sheath with smooth outer diameter. Temperature rating _30 to +90 C. Protection rating IP67. Flammability to CEI 23-8/111-1973 with 10 second flame resistance. Resistance definition Class 4 heavy over 3000 newtons. Mechanical tensile strength Class 5 very heavy up to 1700 newtons.. 30m in length.