This is the 18 inch length Hydraulic Brake Hose.  There is a stainless steel flare on this brake hose to eliminate the possibility of a split during installation. In addition, there is a stainless steel extension at the end of the brake hose to increase the space for your tools when tightening the hoses. This Trailer Brake Hose also offers 40% more thread to yield a stronger, more leak-proof connection. It is an extremely high pressure and UV resistant rubber flexible hose that is DOT approved for trailer usage. The ends are 3/16" Male inverted flare fittings with a swivel that use 3/8-24 thread, which will fit most trailer calipers, master cylinders, and solenoid valves.