Pentair Rainbow 320 Automatic In-Line Chlorine Bromine Feeder R171096 for pool and spa
Pentair Rainbow 320 Automatic In-Line Chlorine/Bromine Feeder R171096
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Pentair

Pentair Rainbow 320 Automatic In-Line Chlorine/Bromine Feeder R171096

Key item features

  • Automatic Sanitization: Automatically sanitizes pool or spa water, eliminating the need for manual chemical handling and storage.
  • Secure Installation: Designed for permanent installation in the return line of new or existing pools or spas.
  • Ventilation-Free Operation: Features an enclosed design that prevents gas escape, requiring no special venting for efficient operation.
  • Adjustable Control: Equipped with an external dial control for quick adjustment of chemical dispensing and a safety lock ring for easy lid removal.
  • Versatile Connectivity: Standard with a 2-inch slip PVC fitting and includes adapters for 1-1/2 inch connections.
  • Generous Capacity: The feeder chamber holds 11 large (4.8 lbs) or 98 small (3.5 lbs) bromine or slow-dissolving trichlor tablets.
  • Easy Maintenance: Includes a drain valve for convenient recharging and winterizing procedures.
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Current price is Now $119.98
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was $133.99
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Sold and shipped by In The SwimPro Seller
4.367202572347267 stars out of 5, based on 3110 seller reviews(4.4)
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4.2 out of 5 stars
stars17 ratings10 reviews
How item rating is calculated
  1. 5 stars65% (11)
  2. 4 stars12% (2)
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Showing 1-3 of 10 reviews

Oct 8, 2025
anonymous
Sold and shipped byIn The Swim
5 out of 5 stars review

Verified Purchase

Pentair Rainbow 320 Automatic In-Line Chlorinator

Best price I could find for this at time. Direct replacement for the old that was 30-plus year old and leaking.

Helpful?2WCN1PB3EXF9430492312
Jun 17, 2021
Craig T.
5 out of 5 stars review

Seller Verified Purchase

QUICK DELIVERY & CHLORINATOR WORKS GREAT

The new in-line chlorinator came very quickly. Once installed, it works very well. I no longer have to worry about constantly mixed powdered chlorine for our vinyl inground pool. I did have to shift the connector tube to the higher inlet, at the top, since the tube was not filling properly. But that only took 5 minutes to accomplish.

Review from https://intheswim.com
Helpful?2WCN1PB3EXF9430492312
Aug 31, 2022
James B.
5 out of 5 stars review

Seller Verified Purchase

High quality chlorinator

I'm replacing my "cheap" chlorinator (which did not seem to work at all) with this high-quality chlorinator from a brand that I trust. I also have the Pentair variable speed pump, which i love.

Review from https://intheswim.com
Helpful?2WCN1PB3EXF9430492312