I have also seen them for sale in Cal Ranch stores and other places around northern Utah.
Andersen has almost exclusively gone to the Aluminum version - stronger, stays looking nice LONG after it's been used alot, lighter weight, etc. No more steel versions being made. The aluminum is better in almost every aspect. And Andersen has no problem selling them. The aluminum hitch sells itself - as you know.
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BTW: I got mine (Powdercoated Black Steel version) from a close friend who was doing business with Andersen about the time they they converted from the powdercoated steel version to the aluminum version. We live in northern Utah and he was working in the steel and fabrication business - which took in most of Idaho as part of his business area.
While at their shop one day, he noticed a box full of the black steel hitch odds and ends and a few remaining whole hitch units that had been pushed aside to make way for the aluminum ones. He offered to take them off their hands for a rediculous price... and they agreed. I best not say how much I got mine for or you WOULD cry.
Irregardless of the price however, I still like the aluminum ones better, much better. If and when my steel one gives up, I'll be the first in line to buy a silver one.
Also, please note that I would need to have 3 locking pins in order to keep my hitch locked up. With the aluminum ones, you only need two. That's because Andersen began using an internal-type locking pin for the reversable ball. Great idea!!