Pentair Rainbow Model 320
Regular Price: $149.95
Availability: In Stock
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Pentair Rainbow 320 Automatic In-Line Chlorine/Bromine Feeder

SKU #: R171096

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Short Description

Pentair Rainbow Model 320 holds 11 large or 98 small Bromine or slow dissolving Trichlor tablets and treats 6500 to 27000 gallons.

Chemical Feeder Features:

  • No special venting required
  • Permanent installation in return line of new or existing pools or spas
  • Standard with 2" slip PVC fitting and adapters for 1-1/2"
  • Unions not included
  • Hold 11 large or 98 small bromine or slow-dissolving trichlor tablets
  • NSF listed
  • 50 PSI maximum operating pressure
  • Easy tablet level monitoring
  • Treats 6500 to 27000 gallons bottom feed and 18000-70000 top feed
  • Dimensions: 17-3/4"H x 5"W x 10"D


The Pentair Rainbow Model 320 Chlorine/Bromine Feeder sanitizes your water automatically without the worry of transporting or storing harmful chemicals. Installed in the return line of your pool and spa equipment, the Rainbow 320 Feeder features an enclosed design that prevents gas from escaping and requires no special venting to operate efficiently.

Equipped with a safety lock ring for easy lid removal, an external dial control for quick adjustment, and a drain valve for recharging and winterizing, the Rainbow 320 is made for easy operation.




Great for installation in the return line of your pool or spa system, in-line chemical feeders are literally plumbed "in line" with the other equipment in your system
Flow-through Circulation

Flow-through Circulation

Pentair's chemical feeders are built with flow-through circulation, which results in maximum clean water output


Chemical feeders from Pentair are reliable and highly-efficient, providing automatic sanitization. Using slow-dissolving chlorine or bromine tablets, maintenance is easy and less frequent


Pentair chemical feeders are available in off-line and in-line models. They automatically sanitize residential and commercial pools up to 332,000 gallons and the threaded inlet and outlet fittings make installation easy