While it isn't manufactured anymore, significant quantities of "new old stock" (NOS) still exist in warehouses and private collections.
While new production of (Dichlorodifluoromethane) has been banned globally since the 1990s due to its ozone-depleting properties, you can still legally buy it today as "new old stock" or recycled material. Where and How to Buy R12 can you still buy r12
What To Do About R12 Refrigerant, the Original Freon? - eBay While it isn't manufactured anymore
Because supply is finite, R12 is significantly more expensive than modern alternatives like R134a. can you still buy r12
If R12 is too difficult to find or expensive, owners of older systems typically choose one of three paths: