Someone elce will have to quote you the code article here. I never seen that and it sounds like a viloation to me. We use metalic 3/4 sealtite to snake around inside to the control box off a 3/4 pipe feeding it. Pipe is required around here.
What your talking about must be one of those EC I hear about that will hook up a hot tub for $ 250. I tell the customer that just the materials cost about that to do it right. The customer is angry at me cause I am acussed of ripping them off. In the end they get the $250 special (romex and a 2 pole breaker no connectors or GFI's).
Tom
