Feature 【Compatible Replacement】 Designed as a perfect replacement for Pentair R171096 and Rainbow 320 chlorinator, fully compatible with most pool and spa return lines. 【Chlorinator Function - Wide Capacity Range】The 320 pool feeder features a closed circulation design and supports up to 11 large or 98 small tablets. It is suitable for pools and spas of different sizes, handling 6,500–27,000 gallons (bottom feed) and 18,000–70,000 gallons (top feed) with flexible capacity coverage. .
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