4" Diameter—Precision Marine Protien Skimmer Waste Collector Model WC410
Compatible with Precision Marine Systems skimmers (excluding HOT-1)
Carbon Cap for odor removal
Built to the Precision Marine quality standard S...
At Precision Marine there are two ways Calcium can be added to your reef tank, the Calcium Reactor or the Kalkreactor pictured here. You can either gravity feed through the Kalkreactor from a freshwater top-off system to your rese...