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Pentair Rainbow 300 Automatic Off-Line Chlorine/Bromine Feeder, R171016

Pentair Rainbow 300 Automatic Off-Line Chlorine/Bromine Feeder, R171016

Mfg #: R171016

SKU: R171016

UPC: 788379004217

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Pentair R171016 Rainbow(TM) 300 Off-Line Automatic Chlorinator For 11 Large or 98 Small Chlorine or Bromine Tablets 

The Rainbow 300 Series will retrofit into existing pools or spas. They not only save time, but they also reduce manual handling of chemicals. The Pentair automatic feeders feature an external fine control valve that lets you adjust the feed rate to meet specific pool or spa requirements. The check valve protects the pump and heater from back-up of highly chlorinated water.

The Rainbow Automatic Feeders are completely enclosed systems, so no escaping fumes. with the simple, trouble-free design, no venting is necessary. They are top loading which makes it very easy to add chemicals. And extensions are available to increase tablet or stick capacity, in case you are away for an extended period.

These Pentair Automatic Feeders are NSF listed for public or residential use in swimming pools, spas or hot tubs using 1 inch Trichlor tablets and when used with a flow indicating device such as Rainbow Model R172080. Output rating for Bromine is not NSF certified for 300 and 320 Series feeders.

Chemical Feeder Features

  • Completely enclosed system - no escaping fumes
  • Simple, trouble free designs - no special venting required
  • Top loading makes it easy to add chemicals
  • 300 Series
  • Completely enclosed system - no special venting required
  • No escaping gases
  • No unions required.
  • All Rainbow Feeders are NSF Listed
  • 50 PSI maximum operating pressure
  • Retrofits into exisitng pools or spas
  • Operates on pressure side of pool pump
  • Uses 1/4 feeder hoses, control valve and fittings
  • Holds 11 large or 98 small tablets
  • Treats 12,000 to 48,000 gallons


Brand Pentair
Finish Color Clear Amber
For Use With 11 Large or 98 Small Chlorine or Bromine Tablets
Item Chlorinator
Series 300
Size 21 Inch x 7 Inch x 12 Inch
Sub Brand Rainbow™
Type Off-Line, Automatic

Click Here for Replacement Parts Diagram