MettleAir 99HB-4 1/4" ID Elbow 90 degree Hose Barb Union Fitting, Brass (Pack of 10) Part #: 99HB-4 Hose ID 1 (Left): 1/4" Hose ID 2 (Right): 1/4" Material: Brass Type: 90 Degree Elbow Hose Barb Union