SQUARE TO ROUND TRANSITION 1.5 22×22/16 SQUARE TO ROUND TRANSITION 1.5 22x22/16 SQUARE TO ROUND TRANSITION 1.5” Deep Category: Sheet Metal Fittings Sub-Category: Transitions Next Product SQUARE TO ROUND TRANSITION 1.5 22x22/18 Previous Product SQUARE TO ROUND TRANSITION 1.5 22x22/14