This is a used air compressor that fits the Statim 2000, either Classic or G4 models. I tested it, and it purrs very smoothly, indicating that it has plenty of life left. Check out the video and hear how smooth it runs! It also has a brand new filter inside. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Autoclaves & Sterilizers". The seller is "minnesota_autoclave" and is located in this country: US.