I am installing a Hydro Systems jetted tub with in-line heater in my upstairs bathroom remodel. The tub requires a dedicated 110v 20 amp GFCI-protected electrical circuit for the pump and an additional dedicated 110v 20 amp GFCI-protected circuit for the heater. Does it make any difference whether I use a couple of cheap GFCI outlets at the tub or install more expensive GFCI breakers at the panel? The only reason I hesitate to install the breakers is that they each require 2 slots in the panel and I am getting toward the end of available slots in my 200 amp service panel. Are the breakers any more durable than the outlets?