WTS Homemade Calcium Reactor - $100

I got out of the hobby about a year ago. I held onto some things that I thought were 'must keep' items at the time. As time goes by, i'm just looking to get rid of everything. So... what we have here is a 3 chamber calcium reactor set in transparent PVC. One pump is used to pump from your aquarium through the tubing into the reactor chamber 1 where only salt water exists. The water is then pushed into chamber 2 where a mixture of aragonite and CO2 are mixed to create the reaction.  Here is a great article on what happens in the reaction chamber: http://en.wikipedia.org/wiki/Calcium_reactor. In the final chamber the calcium/alkaline mixture is stored and through a drip counter is slowly added back into the reef tank.
It is a great little setup and if paired with a digital calcium reactor reader / run controller, it is a great asset to have. Think about it. Never having to deal with the day to day pains of manual addition of calcium / alkalinity solution.
I'm in Cedar Rapids.
Won't take trades.
Willing to negotiate price.
-Does not come with digital PH reader for calcium reactor control.