This is the one I bought off of Craigs for $25, only 2 gallon but for stabilizing it works great. Wasn't quite as bad as the one above, but it was coated in paint and needed a seal. Works fine, ran it up to 75 pounds and nada happened. A lot better than the HF China version I have.
I just picked up a used Craftsman (old style made by DeVilbiss I believe) with the cast iron lid from a local steel salvage yard for $5! In perfect condition too!