The Pentair Rainbow 300 off-line automatic chlorinator (Model R171016) is a top-performing chemical feeder designed for precise and convenient sanitization of pools and spas. This feeder supports both chlorine and bromine, utilizing slow-dissolving tablets to ensure consistent chemical distribution.

Key Features:

• Capacity: Can hold up to 11 large 3" tablets or 98 small 1" tablets, ideal for treating water volumes from 6,000 to 48,000 gallons.
• Safety: Fully enclosed system prevents any odors or fumes from escaping, with no special venting required.
• Installation: Easily retrofits into existing pool or spa systems, installing on the pressure side of the pump and using 1/4" feeder hoses (included).
• Operation: Features an external control valve to adjust feed rate, ensuring optimal performance for specific pool or spa needs. A check valve protects the pump and heater from backflow.
• Convenience: The top-loading design simplifies the process of adding chemicals, making maintenance straightforward and hassle-free.
• Certification: NSF listed for public and residential use with 1-inch Trichlor tablets; not NSF certified for Bromine output in the 300 and 320 series feeders.

Ideal for pool owners looking for a reliable, easy-to-use solution to automate their pool or spa's chemical maintenance, the Pentair Rainbow 300 chlorinator combines robust functionality with simple operation, making it an essential component for any efficient pool care routine.