Sierra Comflex 1-18 WaterExhaustFuel Line Comflex is a versatile wire reinforced hose specially designed for inspected vessels. Comflex is rated for fuel, vital water and non-vital water systems on boats requiring SAEJ1942 hoses. Features Black Nitrile Tube 2 textile piles with dual wire helix Black Chlorprene Temp. Range -20F to 212F Specifications I.D. 1 18 or 28.6mm O.D. 1.56 or 39.6mm Ply 2 Wt. C 62 Bend Radius 3 WP 75 Application Bilge, coolant, oil and fuel systems using gasoline, gasohol,