Stirrer (rotating antenna) for Samsung CM1919/CM1929 commercial microwave ovens.
Samsung part Number: DE92-90515A]
The rotating antenna fits above the stirrer cover in the top of the microwave oven.
Samsung ovens have two antennas in the top of the oven, they do not have one under the ceramic shelf.
Samsung CM1919 commercial microwave oven,
Samsung CM1929 commercial microwave oven.