A: Fred I see several differences. The first appearance- the design of the posts that hold the bar- one is a little more elaborate than the other. Also it appears that the Greenwich II only comes in brushed nickel- the Greenwich comes in Nickel, Chrome or Brass. The Greenwich has a "click" mounting system- you put two brackets on the wall using your template and the towel bar posts slip over and click tight. I have not installed any of thes mounts- but they look interesting. The Greenwich II uses what I call the traditional mount- put 2 mounting plates on the wall, slip the post over them and then tighten the set screw.. On your computer you can click between the two photo's to see the different appearance.
A: Fred, Thank you for your question. The Greenwich collection has a variety of finishes, different mounting systems, and bases are a different style. The Greenwich II has SpotShield technology that resists water spots, fingerprints and stains so the bath hardware stays cleaner longer. Best, Customer Care Team