Comparison : Item # 6902-04-04, 1/4 Inch (in) T1 (ORB) and 1/4 Inch (in) T2 (FNPSM) Carbon Steel 45 Degree Male O-Ring x Female Swivel Elbow
Item # 6902-06-04, 3/8 Inch (in) T1 (ORB) and 1/4 Inch (in) T2 (FNPSM) Carbon Steel 45 Degree Male O-Ring x Female Swivel Elbow
Item # 6902-06-06, 3/8 Inch (in) T1 (ORB) and 3/8 Inch (in) T2 (FNPSM) Carbon Steel 45 Degree Male O-Ring x Female Swivel Elbow
Item # 6902-08-06, 1/2 Inch (in) T1 (ORB) and 3/8 Inch (in) T2 (FNPSM) Carbon Steel 45 Degree Male O-Ring x Female Swivel Elbow
Item # 6902-08-08, 1/2 Inch (in) T1 (ORB) and 1/2 Inch (in) T2 (FNPSM) Carbon Steel 45 Degree Male O-Ring x Female Swivel Elbow