The first letter indicates usage.BStands for bottled goods.
SStands for showcase.
The second letter indicates the condensing unit position.SMeans standard bottom mount unit.
RMeans remote-condensing unit; order with or without unit.
TMeans top mounted unit.
The next numbers refer to cooler width.52Means 52″.
The letters that follow the numbers indicate the type of doors.GDMeans gliding or sliding doors.
SDMeans swinging or hinged doors.
Any letters following those two letters indicate a specialty.HDMeans heavy duty.
SSMeans stainless steel.