The UV ADDON Series is madeto be an easy addition to current water systems that need additional ultraviolet disinfection (EX: holding tanks, reverse (RO) systems, recirculating systems, water dispensers and etc.). The ADDON systems are available with a flow rate of 1 GPM or 3 GPM. They are constructed using a 304 grade stainless steel body with a molded head that includes 3/8" QC fittings on the inlet and outlet. This versatile system includes a heavy duty mounting bracket. Though this ADDON Series will also fit standard 2" reverse (RO) osmosis system mounting clips. The UV ADDON Series can be used almost anywhere and is equipped with a unique power supply that makes installation and the replacement of the UV very easy. This easy to install UV series is also great for minimal space requirements.