PART NUMBER TUBING SIZE TUBING GAUGE TUBING TYPE INTERNAL THREAD 30404-1165-1300 5/8" 16/18 GA ROUND/SQUARE 1/4-20 30404-1756-1300 3/4" 16/18 GA ROUND/SQUARE 1/4-20 30404-1876-1300 7/8" 16/18 GA ROUND/SQUARE 1/4-20 30404-1106-1300 1" 16/18 GA ROUND/SQUARE 1/4-20 30405-1106-1300 1" 16/18 GA ROUND/SQUARE 5/16-18 30404-1126-1300 1-1/8" 16/18 GA ROUND/SQUARE 1/4-20 30404-1256-1300 1-1/4" 16/18 GA ROUND/SQUARE 1/4-20 30407-1256-1300 1-1/4" 14 GA ROUND/SQUARE 3/8-16 30404-1156-1300 1-1/2" 16/18 GA ROUND/SQUARE 1/4-20 30405-1156-1300 1-1/2" 16/18 GA ROUND/SQUARE 5/16-18 30404-1206-1300 2" 16/18 GA ROUND/SQUARE 1/4-20 30404-1207-1300 2" 16/18 GA ROUND/SQUARE 1/4-20