Pentair 523148 Bioshield 3 in. union kitPentair Bioshield 3" Union Kit, 523148 In stock$30199
Pentair 523148 Bioshield 3 in. union kit
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Pentair Bioshield 3" Union Kit, 523148

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$30199
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Quick overview

  • Genuine Pentair The factory kit, part 523148.
  • 3 in. size The 3 in. unions, matched to the Bioshield connections.
  • Fits 522638 and 522945 Listed for both Bioshield part numbers.
  • Supplied as a kit Ordered as one kit rather than as loose pieces.
  • Unions earn their keep at service time They let the unit come out of the line without cutting pipe.
  • Replacement or spare For cracked or leaking originals, or as a set held for the next service.
Full description and specifications ↓

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Product details

This is the Pentair 523148 union kit, the 3 in. unions listed for the Bioshield units 522638 and 522945. It is the genuine Pentair part.

Why unions matter

Unions are the joints that let a piece of equipment be taken out of the plumbing without a saw. Everything about servicing a unit, from a seasonal strip down to a full replacement, is easier when the unions on either side are sound. When one cracks or refuses to seal, the whole assembly is on the wrong side of a repair that should take minutes.

Before you order

Check the Bioshield part number on your unit against the two this kit is listed for, 522638 and 522945, and confirm the 3 in. size on your existing connections.

Specifications
Brand Pentair
Manufacturer part number 523148
UPC 788379507534
Type Union kit
Size 3"
Fits Pentair Bioshield 522638, 522945
Ships Parcel

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Questions and answers

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

What size are the unions?
3 in.
Which units does the kit fit?
It is listed for the Pentair Bioshield 522638 and 522945.
Is this a genuine Pentair kit?
Yes. It is Pentair part 523148.
Why would I replace the unions?
Union threads and their seals are the parts that get worked every time the unit comes out of the line. A cracked collar or a union that will not stop weeping is replaced rather than repaired.
Ask your own question