Drop-In Frost Top,21-1/16"L,accommodates (1) full size sheet pan,lighted on/off rocker switch,electronic adjustable temperature control can be mounted to either side of condensing unit or remotely up to 4 from unit,auto-defrost,self-contained refrigeration,R404a,cULus,Made in USA,Height:17.25 Width:21.06 Depth:28.94