I have a used Mag 18 for sale for $80. It works well but is just too powerful for my current setup. Local pick-up is preferred but I can ship at buyers expense.
A trade for a return pump in the 900 GPH range is also a possibility.
This pump is still available. However, I'm no longer interested in trading for a smaller pump. I can accept paypal and as a CR special will include shipping (in the continental US) for free.