Compatibility Assurance: [Step 1] MEASURE the outer diameter (8.8 inches or 22.2 cm) [Step 2] MEASURE the roller height (15 mm) of your old microwave turntable ring. Roller Height Variations ...

They also allow quick adjustments to your previous settings. Turntable vs. tray. A microwave must keep food moving for uniform heating. Some have replaced a round turntable with a rectangular tray ...