There is another thread on this "Hospital Grade Wall Outlets" last post 1-10 and good information on where to buy cheap. 29.00 is rather high. I believe one place was selling for 18.95 each. Installation is the same as a regular outlet. Hot, neutral and ground, very simple hook up. Also try a local electrical supplier. I have found hospital grade although not Hubbell, for 14.00 each. I suspect the quality is comparable.