Metal protection hose type LIQUID-TIGHT EF galvanized steel with special thread sealing, increased oil resistant, smooth, reinforced flame-retardant PVC jacket, silicon and cadmium, for liquid-tight installations, especially for export, according to U.S. installation standards, VDE approved. IP 68 according to EN 529 6Color: gray Inner diameter: 35.5mm OD: 42 mm nominal size: / 10,2 cm ( 4 inch ) Type: LIQUID-TIGHT-EF35-25M item: 25 MTR