What size tank do you have? There is a local guy selling a two chamber reactor with everything except ph montior/contoller and media. I think it was used on a 125.
Mike
He just posted on the group message board that it is still for sale.
If you don't jump on it I might Really good deal since it includes pretty much everything you need.
Although I would like an MRC better myself. Andy has such awesome products.
Mike