SQUARE TO ROUND TRANSITION 1.5 – 6×6/6 SQUARE TO ROUND TRANSITION 1.5 - 6x6/6 SQUARE TO ROUND TRANSITION 1.5\\” Deep Category: Sheet Metal Fittings Sub-Category: Transitions Next Product SQUARE TO ROUND TRANSITION 1.5 9x9/08 Previous Product OBD DL Operator for the 6500 21x21 Neck