Hose ID: 0.22". 4AN Fuel Line Kit, 4AN Nylon Braided Fuel Line Hose Fitting Kit CPE 10FT Black. Braided fuel hose can withstand higher pressure, widely used in fuel system, oil cooling system, etc. 4an hose is made of CPE rubber inner, with a layer of 304 steel wire and nylon outer braid; the hose fittings are made of aluminum alloy.
