This is a Used Glacier bay refrigeration compressor. it is a model HS12. it was removed from an operating system that had no issues. it was installed in a system with two plates, one freezer and one fridge. would make a great replacement for your system if you need a compressor. and would save you thousands on a complete system upgrade. please contact me should you have other questions. please make sure this will work with your system prior to biding.