The DEL Ozone MCD-50 Ozonator is a high output system designed to sanitize hot tubs up to 1,000 gallons. A premium ozonator, the MCD-50 uses Corona Discharge ozone for eco-friendly spa sanitization, built to dramatically reduce chemical use. Made with a ceramic exterior for improved corrosion resistance and durability, the MCD-50 mounts to the interior wall of portable spas and hot tubs and includes a handy LED indicator for ozone generator operation. This model is a 110V and has a 50 mg per hour output for rated airflow. UL-listed, the MCD-50 includes a replaceable ozone generating electrode and power supply, as well as everything necessary for installation, including tubing, a backflow preventer, and mounting hardware. It includes an amp-style plug for easy hook up.