Pentair BioShield Union Assembly for Models 522935 to 522937 In stock$5899
Quick overview
- Genuine Pentair Factory part number 523375 for the BioShield.
- Replaces 523122 Pentair lists this assembly as the replacement for the earlier 523122.
- Fits 522935 to 522937 Listed for the BioShield models in that range.
- Complete union assembly Supplied as an assembly rather than as separate union halves.
- The plumbing connection The union is how the unit joins the pipework, and it is what you break loose for service.
- Sealing surfaces wear A union that will not seal after retightening needs replacing, not more force.
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Product details
The Pentair 523375 is the union assembly for the BioShield, listed for models 522935 through 522937. It is the genuine Pentair part, and it is the replacement for the earlier 523122.
What the union does
The union is the connection between the unit and the pipework. It is the joint you break loose whenever the unit has to come out for service, which means it gets handled far more than the rest of the plumbing and its sealing faces take the wear.
When to replace it
A union that still weeps or pulls air after it has been properly seated and retightened is done. Cranking harder on a tired union tends to crack the collar rather than seal it, so fitting a fresh assembly is the right call.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 523375 |
| Type | Union assembly |
| Fits | Pentair BioShield models 522935 to 522937 |
| Replaces | 523122 |
| Ships | Parcel |
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