TUBE OD - T A F G H PART NO. mm mm mm mm mm 3 20.1 11 11 13.5 D-PLUG3 6 23.4 14 14 15.7 D-PLUG6 8 24.5 16 16 17 D-PLUG8 10 26.6 17 19 19 D-PLUG10 12 29.1 22 22 19 D-PLUG12 14 29.9 24 25 19.8 D-PLUG14 15 29.9 24 25 19.8 D-PLUG15 16 29.9 24 25 19.8 D-PLUG16 18 31.4 27 30 21.3 D-PLUG18 20 34 32 32 23.9 D-PLUG20 22 34 32 32 23.9 D-PLUG22 25 38.5 35 38 26.2 D-PLUG25 TUBE OD - T A F G H PART NO. inch mm mm MM MM 1/8 20 11 11 13.5 2D-PLUG 1/4 23.4 14 14 16 4D-PLUG 5/16 24.4 16 16 17 5D-PLUG 3/8 25.7 17 17 18.3 6D-PLUG 1/2 29.2 22 22 19 8D-PLUG 5/8 30 24 25 19.8 10D-PLUG 3/4 31.5 27 28.5 21.4 12D-PLUG 7/8 34 35 32 23.9 14D-PLUG 1 38.4 35 38 26.2 16D-PLUG