Conduit Fitting with Strain Relief, Straight with External Male Thread, Conduit Size 20mm, M20 Thread, Minimum Bore 17mm, Suitable for Unbraided Nylon Conduit, Clamping Range 9.0 to 13.0 K, Approved for Zone 1 and 2, Zone 21 and 22, IP68 Rating, Modified Nylon 12 with Nickel Plated Threads, Black