My builder puts all of the AC units in the development on these metal arms/mounts. I asked my AC guy where they get them from (ie, are the custom, made on site, etc). The AC folks didn't know...they just plop the unit on top if it (it is there when they get there). I asked the electrical folks, the framing folks, and even the super. Nobody knows where they get them. Must be magic and they just appear! I called the corp office for my builder a week ago to ask who puts them on the homes because I want 3 or 4 of them.
Here is a picture of arms/supports on the house going up next to mine (mine are partly underground due to final grading and you can only see the top part the the unit is actually sitting/mounted to).
I am installing a standby generator next to my AC units and wanted to have everything look the same. Would rather set the generator ontop of a couple sets of these then put down a pad and make it look different then the AC unit installtion.