Check the listing for details. Aquascape Dosing System SL. Condition: New. Listed at 119.98 USD. Maintaining optimum water quality has never been easier. To keep ponds and water features clean and clear, it is important to add beneficial bacteria and other water treatments on a regular basis. The Dosing System SL is an electronically operated dispenser that accurately and consistently applies specially formulated water treatments, eliminating the guesswork and routine of manually adding treatments. Dosing System SL is designed specifically for smaller water features as large as 2,250 gallons, including fountains, small ponds, and waterfalls.Each system includes an injection-molded enclosure, control panel, one treatment intake assembly, internal/external treatment tubing, and low-voltage transformer. Multiple treatment options are available for a wide variety of issues including cloudy water, bad odors, and excessive debris. The system is designed for use with Simple Solutions SL treatments in 32 oz. bottles.