Magic Plastics 121108025 2-1/2 in. Female Buttress Thread Split Nut
Brand: Magic Plastics | SKU: 121108025
Product Overview
The Magic Plastics 121108025 is a split-nut repair component for compatible heater-union connections. The two-piece split design allows the union nut to be replaced around an existing connection without treating the part as a general-purpose PVC coupling.
This model is associated with 2-1/2-inch plumbing and female buttress-thread/large-flange heater-union applications. Because heater unions vary by thread and flange geometry, confirm the existing union dimensions and connection style before ordering.
Key Features
- Split-nut replacement for compatible heater unions
- Female buttress-thread connection style
- Designed around 2-1/2 in. plumbing applications
- Split construction supports repair of an existing union assembly
Common Uses
Replacing a damaged union nut on compatible pool or spa heater plumbing without replacing an otherwise serviceable union connection.
Technical Specifications
- Part type: Split nut
- Nominal plumbing size: 2-1/2 in.
- Connection style: Female buttress thread / large-flange heater-union application
Compatibility & Installation Notes
Do not select by nominal pipe size alone. Verify the heater unionβs buttress thread, flange dimensions and mating components before ordering.
Frequently Asked Questions
Is this a complete heater union?
No. It is a split-nut repair component for a compatible existing union assembly.
Can it repair any PVC fitting?
No. It is intended for specific compatible buttress-thread heater-union connections.
Why Buy From Big Frog Supply?
Choose Magic Plastics 121108025 from Big Frog Supply when a compatible 2-1/2-inch heater-union assembly needs the split nut replaced without unnecessarily replacing the entire plumbing connection.






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