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Pentair Rainbow 320C In-Line Pool Automatic Chlorine Bromine Chemical Feeder, R171218

Pentair Rainbow 320C In-Line Pool Automatic Chlorine Bromine Chemical Feeder, R171218

Mfg #: R171218

SKU: R171218

UPC: 788379004446

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Pentair R171218 Rainbow 320C In-Line Automatic Chlorinator 

Rainbow Automatic Chlorine/Bromine Feeders are designed to be used with slow dissolving trichlor or bromine tablets only. It installs on the pressure side of the pump downstream of all pool equipment and comes standard with 2" and 1 1/2" slip PVC fittings. This feeder can be plumbed in a top feed and bottom feed configuration. It treats pools from 6,500 to 27,000 gallons of water in a bottom feed configuration and 18,000 to 70,000 in a top feed configuration.


  • 320 Series
  • Completely enclosed system - no special venting required
  • No escaping gases
  • Unions not included
  • All Rainbow Feeders are NSF Listed
  • 50 PSI maximum operating pressure
  • For permanent installation in return line of new or existing pools or spas
  • Standard with 2 slip PVC fittings and adapters for 1-1/2
  • Holds 11 large or 98 small Bromine or slow dissolving Trichlor tablets
  • Treats 6500 gallons to 27000 gallons top
  • 18,000 to 70,000 gallons in top feed configuration with see-through amber body
  • Uses 1/4" feeder hoses, control valve and fittings (Included)
  • In-Line Plumbing
  • See-through Amber Housing


Brand Pentair
Color Clear Amber
For Use With 11 Large or 98 Small Bromine or Slow Dissolving Trichlor Tablets
Item Chlorinator
Packaging Quantity     1/Carton
Series 320C
Size 17-3/4 Inch x 5 Inch x 10 Inch
Sub Brand Rainbow™
Type In-Line, Automatic

Click Here for Replacement Parts Diagram