Brian- The compressor is a vertical tank Dayton 120V from 15+ years ago. Peter says it's the largest/most HP that a 120V allowed for back then. I'll take more info off it's plate when I next use it.
I've used a number of compressors and a few sandblasters over the years. This set up is looking to be the among the nicest siphon units I've set my hands on. Doug F's pressure pot system is far nicer as it should be as it's likely 5+x the cost
. Andy (who today started on another two frames. And that's what these tools are all about, making stuff).