This 3/4 inch pipe 90 degree street elbow is used for applications involving air, water, oil, natural gas, propane and steam. It is made of malleable iron and has 3/4 inch MIP by 3/4 inch FIP threaded end connections. The working pressure is 300 psi at temperature range of minus 20 degrees F to 150 degrees F and the working pressure is 150 psi at a temperature of 350 degrees F.