... two points, three points, four points (G1/8 "), (G1/4 "), (G3/8 "), (G1/2 "). 6 points (G3/4 "), M6, M10, M8, most M14 ... changes tee: 10-6-10 14-10-14 8-6-8 10-8-10 Equal coupling : 1.6 mm to 2 ... 4 mm 6 mm 8 mm 10 mm 12 mm 8 * 6 mm 4 * 8 mm 10 * 8 mm 12 * 6 ... mm Gas row: 2 head, 4 head,6 head , 8 first,10 head, 12 head, head of 14, 16 ... 4.5 mm,large diameter: 4 mm 6 mm, 8 mm, 10 mm, 12 mmNote: 4 mm tee, ...