Pentair R171096 Rainbow™ 320 In-Line Automatic Chlorinator For 11 Large or 98 Small Bromine or Slow Dissolving Trichlor Tablets, White. Pentair Rainbow 320 Automatic In-Line Chemical Feeder holds 11 large or 98 small bromine or slow dissolving chlorine tablets and treats 6500 to 27000 gallons.
