I remember how hard it's been to find a 120 vac input VFD. Here's a HUANYANG VFD Variable Frequency Drive,1 Phase Input, 3 Phase 0-400HZ Output, 2.2kW 3HP for $95 shipped. Of course this is a NEMA 1 enclosure, but with filters over the air inlets that's not so much of a problem. A 1.5KW 2hp...