Thats eaton cutler hammer. Not related to eaton/polar compressor that is based in Eaton PA.That seems to be an Eaton compressor, based on the Eaton sticker in one of the photos.
Their web site shows the current equivalent 7.5 hp, 80 gallon, single phase compressor has a higher delivery, ie 31 scam, and runs from around $3200 to $5200, depending on options, ie air dryer, etc.
Thats eaton cutler hammer. Not related to eaton/polar compressor that is based in Eaton PA.
What he said. Don't settle for anything less than the air volume you currently have, especially if you use it.That appears to be a two stage air pump, and the specs I see listed back this up (the 21.2 CFM delivery at 175 psi isn't that much lower than the 22.1 CFM at 100 psi). Furthermore, the link that @MacMcMacmac posted looks like this air pump, and it's a two stage.
That appears to be a pretty capable compressor. Don't settle for a single stage replacement.