Steel merchant coupling with British standard

size Least Outside Diam. Length(mm)
8 18.5 27
10 22 28
15 27 37
20 32.5 39
25 39.5 46
32 49 51
40 56 51
50 68 60
65 84 69
80 98 75
100 124 87
125 151 96
150 178 96