I have a Rio 3100 pump that I am not using. I bought it in a package deal with a sump and overflow for my SW aquarium. As my tank is only 29g, the 3100 is too big for my needs.
I was told it was 1 year old when I bought it and it works fine (tested it in my pond). I believe it comes with all the original accessories (suction cups, outflow valve, adaptors, etc).
I am in Nashville, so it would have to be shipped. It looks like they go for $60 new online. I'd take $25 for it since I don't need it plus whatever it costs to ship (guessing $5-7 via USPS).