2 1 2 in mm July 8, 2019 16 32 64 128 2 1 2 mm in inches 2 1 2 inch in mm 2 1 2 cm in mm 2 1 2 inches in mm ring size 2 1 2 pipe in mm 2 7 1 2 in mm 2 5 1 2 in mm 2 1 2 diameter in mm 2 11 1 2 in mm 2 1 ⁄ 2 in mm 2 9 1 2 in mm 2 1 2 m in mm 2 1 2 guard in mm 2 1 2 bsp in mm