Pentair 210396Z Rainbow chlorinator check valve screen for models 320 and 322Pentair Rainbow Screen for 320 and 322 Automatic Chlorinator, 210396Z In stock$799
Pentair 210396Z Rainbow chlorinator check valve screen for models 320 and 322
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Pentair Rainbow Screen for 320 and 322 Automatic Chlorinator, 210396Z

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$799
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Quick overview

  • Check valve screen The screen that sits in the inline chlorinator check valve.
  • Fits 320 and 322 Listed in the parts diagrams for both the Rainbow 320 and the Rainbow 322 automatic feeders.
  • Two part numbers Sold as Pentair 210396Z and also listed as R172255, which is the number many older diagrams use.
  • Genuine Pentair The factory part for the Rainbow feeder, not a substitute mesh.
  • Cheap insurance A blocked or damaged screen upsets feed rate, and this is a low cost part to replace on a service visit.
  • Feeder maintenance Worth checking whenever the chlorinator is opened for a tablet refill or a lid o-ring change.
Full description and specifications ↓

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Product details

The Pentair 210396Z is the inline chlorinator check valve screen for the Rainbow automatic feeder. It appears in the parts diagrams for the Rainbow 320 and the Rainbow 322, and is also listed under the number R172255.

What the screen does

The screen sits in the check valve on the inline chlorinator. Its job is to keep debris out of the valve so the feeder can meter sanitizer at the rate the dial is set to. When it clogs or tears, feed rate goes unpredictable and the chlorinator gets blamed for a chemistry problem that is really a two dollar part.

When to change it

Any time the feeder is open, look at the screen. Tablet dust and scale build on it, and once flow through the valve is restricted the whole feeder behaves differently. Replacing it alongside the lid o-ring is a sensible bit of routine chlorinator maintenance.

Specifications
Brand Pentair
Manufacturer part number 210396Z
Also listed as R172255
UPC 788379885090
Type Inline chlorinator check valve screen
Fits Pentair Rainbow Automatic Feeder Model 320, Model 322
Shipping weight 0.1 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which feeders does this screen fit?
It is listed in the Pentair Rainbow chlorinator parts diagrams for model 320 and model 322.
Why are there two part numbers?
The screen is sold as Pentair 210396Z and also appears as R172255 in the Rainbow listings and diagrams. Both refer to this screen.
What does the screen do?
It is the screen inside the inline chlorinator check valve, which keeps debris out of the valve so the feeder meters correctly.
Is it a genuine Pentair part?
Yes. It is the genuine Pentair Rainbow part.
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