Product review (1 stars): WARNING - Will not work on glass front commercial refrigerators listed!!
After hours and hours of researching, a helpful support tech contacted Frigidaire on my behalf and we learned that ALL of Frigidaire's glass front commercial refrigerators, mine included (FCGM201RFB1) are FACTORY SEALED because of the argon gas between the glass panes. The gasket is factory-sealed into the assembly and cannot be disassembled.  The diagram that Frigidaire and many repair reference sites are using the wrong schematic.  The schematic shows a gasket replacement part - you cannot install that part unless you break the seal on the glass panes on the door - ergo you have to purchase an entire door when the gasket fails.  Poor design of epic proportions.