
Pentair IntelliChlor Pass-through Cell for Winter, 520588
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Quick overview
- Takes the cell out of the line Replaces the IntelliChlor salt cell in the plumbing when the cell is not being used.
- For winter and start up Listed for winter closing and for start up, whenever the salt cell should come out.
- Water keeps flowing The body passes water straight through, so the return line stays intact with no cut pipe and no bypass to build.
- Protects the real cell The salt cell can come off and be stored somewhere dry instead of sitting in the plumbing all winter.
- Same unions It goes into the same position in the return line the IntelliChlor cell came out of.
- Genuine Pentair Factory part number 520588.
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IntelliChlor Pass-through Cell for Winter, 520588

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Product details
The Pentair 520588 is the IntelliChlor pass-through cell. It takes the place of the salt cell in the return line when the cell is not in service.
Why bother
An IntelliChlor cell is plumbed in line, so pulling it leaves a gap in the return. The pass-through cell drops into that gap and lets water run straight through, which means no cut pipe, no temporary spool piece, and no bypass to build and later undo. Pentair lists it for winter closing and for start up.
What it protects
With the pass-through cell fitted, the actual salt cell comes off the pool and can be rinsed, inspected and stored dry. Cells that spend the closed season sitting full of standing water in the plumbing tend not to last as long as ones that are put away clean.
Note
The pass-through cell has no plates and produces no chlorine. It is a plumbing part, not a chlorinator.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 520588 |
| UPC | 788379691998 |
| Series | IntelliChlor |
| Type | Pass-through cell |
| Use | Replaces the standard Pentair salt cell during winter closing or start up |
| Shipping weight | 1.45 lb |
| Ships | Parcel |
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Questions and answers
What people ask about this product, answered by our pool techs.
What is a pass-through cell for?
When would I fit it?
Does it make chlorine?
Is it a genuine Pentair part?
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