90 Degrees Street Elbow, Malleable Iron, Class Class 150, For Pipe Schedule 40, 3/8 in, Female, NPT, 3/8 in, Male, NPT, 300 psi @ 150 Degrees F Maximum Operating Pressure Fitting is interchangeable with black cast-iron or steel. For low-pressure plumbing applications including air, water, natural gas, and steam.