BrassCraft® Compression Union Elbow, 65 Series, Elbow Fitting, Connection Size 1: 3/8 in, Connection Type 1: OD Tube, Connection Size 2: 3/8 in, Connection Type 2: OD Tube, Tube|Tube Connection, Brass, Material Construction: Brass, Finish: Rough, 0.57 in Hex, For Use With: Aluminum, Copper and Plastic Tubes, 1.3 in H x 1.3 in W, 200 psi, -65 to 250 deg F, Additional Information: 0.032 in THK Tube Wall