Looking for a calcium reactor

[clockdoc]

I am looking for a calcium reactor for my 125 gallon reef tank. I have the CO2 gauges and tank but need the reactor itself. I don't have a lot of money to spend on a new one. I have thought about building one ( the net is full of plans ) but maybe another reefer has one that is not in use and would be willing to sell at a reasonable price.

 

[AZRC]

I have a Korallin C1502 Calcium Reactor that I could let go for $200. Let me know.