90-degree elbow can change the flow of the tubing in a right L angle. Made of 304 stainless steel, strength and resistance to corrosion. Made of 304 stainless steel, strength and resistance to corrosion. Maximum working pressure of 150 psi. Temperature range from -30 to +150 degrees F. This barb hose fitting is made of stainless steel and connects, having an elbow barb hose. Barbed fittings create a tight seal on flexible and semi-rigid hose when used with a hose clamp or crimp sleeve or ferrule (sold separately). Hose fittings connect, control, change the direction of flow, and terminate the flow in piping and hose systems.