Brennan 5502-06-06-FG Forged Steel Pipe Fitting, 90 Degree Street Elbow, 3/8-18 NPTF Male x 3/8-18 NPTF Female 90-degree street elbow for changing flow direction Male National Pipe Taper Fine (NPTF) threads on one end and female NPTF threads on the other for connecting two different types of pipe NPT threads for creating tighter seals than straight threads Steel for durability Meets standards SAE 140239 for quality assurance