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Pentair R171096 Rainbow 320 Automatic In-Line Chlorine/Bromine Feeder For Pool And Spa: The Easy Way to Sanitize Large Pools: These heavy-duty, high-capacity feeders provide automatic sanitation for residential or commercial pools up to 658,500 gallons. All sizes operate effectively and efficiently with slow-dissolving trichlor or bromine tablets.


  • Rainbow 320 automatic chlorine/bromine in-line pool and spa feeder
  • Holds 11 large or 98 small bromine or slow dissolving trichlor tablets
  • Treats 6,500 to 27,000 gallons bottom feed and 18,000 to 70,000 gallons top feed
  • Uses 1/4-inch feeder hoses, control valve, and fittings


  • Brand: Pentair
  • Item Weight: 4.55 Pounds
  • Product Dimensions: 17.75 x 5 x 10 inches
  • Item Form: Tablet