
Compatible with Pentair
520595
Bulkhead Union
Also sold as
Your number not here? Send it to us and we'll confirm the match.
OEM numbers listed for fitment identification only.
Specifications
| Compatible brand | Pentair |
|---|---|
| Category | Plumbing, Unions & Fittings |
| Lead time | 15–25 days after order confirmation |
- MOQ 50 pcs
- Private label available
- Ships from our factory
Request wholesale quote
One request covers the whole list — no need to send them one by one.
Tiered pricing available above 1,000 pcs · OEM packaging available
Product overview
Bulkhead Union — an aftermarket bulkhead dimensioned to drop into Pentair equipment-pad plumbing without modification. In service it forms the sealed pipe penetration through the tank wall. This is a consumable in practice: the threads and sealing face crack, usually from plumbing stress or freeze damage. Ours is dimensionally checked against an OEM sample before tooling is signed off.
This part is cross-referenced to 4 Pentair OEM numbers — 520595, 350015, 357151, 072927 — so buyers working from a number stamped on a failed component can confirm the match before ordering. Available factory-direct from 50 pcs, with mixed cartons accepted and private-label packaging offered for volume programs.
Fits these systems
Pentair equipment-pad plumbing — confirm fitment by OEM number
Not sure it fits? Send us a photo of your part and we'll confirm. Send a photo
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Diving Board Mounting Kit, Two-Hole Residential, Stainless SteelSourcing questions
What is your MOQ?
50 pcs per SKU for stocked items. Mixed cartons are welcome — you can combine SKUs to reach the order minimum.
Can I order samples before a bulk order?
Yes. We ship samples by express before bulk production so you can verify fitment on real equipment.
What are your lead times?
Typically 15–25 days after order confirmation, depending on quantity and whether custom packaging is involved.
Do you offer OEM and private-label packaging?
Yes — custom cartons and labels, your logo molded or printed on parts, and custom molds for volume programs.
520595
Bulkhead Union






