PART NO. ORING DIMENSIONS FLANGE SIZE WELDTUBEO.D D A D1 D2 L 1FLW-08IN 1/2" 1/2" 18.64X3.53 7 30.2 23.9 26 1FLW-12-08IN 3/4" 1/2" 24.99X3.53 7 38.1 31.7 28 1FLW-12IN 3/4" 3/4" 24.99X3.53 7 38.1 31.7 30 1FLW-16-12IN 1" 3/4" 32.92X3.53 8.2 44.4 38 30 1FLW-16IN 1" 1" 32.92X3.53 8.2 44.4 38 32 1FLW-20-16IN 1.1/4" 1" 37.69X3.53 8.2 50.8 43.2 32 1FLW-20IN 1.1/4" 1.1/4" 37.69X3.53 8.2 50.8 43.2 35 1FLW-24-16IN 1.1/2" 1" 47.22X3.53 8.2 60.3 50.3 37 1FLW-24-20IN 1.1/2" 1.1/4" 47.22X3.53 8.2 60.3 50.3 37 1FLW-24IN 1.1/2" 1.1/2" 47.22X3.53 8.2 60.3 50.3 40 1FLW-32-20IN 2" 1.1/4" 56.74X3.53 9.8 71.4 62.2 37 1FLW-32-24IN 2" 1.1/2" 56.74X3.53 9.8 71.4 62.2 40 1FLW-32IN 2" 2" 56.74X3.53 9.8 71.4 62.2 40