Aquascape IonGen System G2 Electronic Algae Controller for Pond, Garden, and Waterfall Features | 95027 Drastically reduces pond maintenance caused by algae, Helps reduce unsightly string algae For all containerized pond sizes up-to 25,000 gallons Can be installed directly into the water feature plumbing or the Flow. Chamber can be placed in an area with good water circulation Probe typically lasts 1-3 seasons, depending on the ionization level it is operated at, size of pond and water parameters of the water feature. Complete with electronic control panel, outdoor-rated transformer, flow chamber, probe, fittings