20cfm SIHIl 3404 liquid ring pump with 5hp motor (water cooled). Everything works like it should. The motor runs but is old. The pump deadheads at 25.5"Hg which is the "like new" spec for it. New, these run about $5800. They are bullet proof units that will run many many years with minimal maintenance. Reason for selling is it's undersized for what I need.