Product Details
- Product type: T-cell union O-ring replacement
- Brand: Hayward
- Part number: GLX-UNION-ORING
- Quantity: Set of 12
- Use: Replacement O-rings for compatible Hayward T-cell union connections
- Compatible system type: Select Hayward Goldline salt chlorine generator systems
- Best use case: Replacing worn or leaking union seals during salt cell cleaning, service, or replacement
- Package contents: O-rings only
- Installation requirement: Match O-ring size and union fitment before ordering
Compatibility and Buyer Check
Before ordering, confirm that your Hayward salt chlorine generator uses GLX-UNION-ORING style T-cell union seals. These O-rings should be selected by part number, size, and union connection fit, not by image alone.
If your union nut or tailpiece is damaged, compare this O-ring set with the Hayward 2-inch union nut tailpiece salt generator replacement or the 2 Pack Salt Cell 2-inch union nut and tailpiece replacement before replacing only the seals.
If you are comparing another compatible connection option, review the Pool Guy Supply T-Cell 2-inch union nut tailpiece. If the plumbing area around the salt cell also needs service, the Hayward GLX-CELL pipe may be useful.
What These O-Rings Do
These O-rings help seal the union connection between the salt cell and plumbing on compatible Hayward Goldline salt chlorine generator systems. A worn or dry O-ring can cause dripping, poor sealing, air leaks, or trouble tightening the union by hand.
Replacing the O-rings can help restore a proper seal when the salt cell body, union nut, tailpiece, and pipe connection are still in good condition. They will not fix cracked fittings, damaged threads, low chlorine output, salt reading errors, or a failed salt cell.
Before You Order
Check these details before purchasing:
- Confirm the exact part number GLX-UNION-ORING.
- Verify that your system uses Hayward T-cell union O-rings.
- Confirm that a set of 12 is the correct quantity for your maintenance needs.
- Inspect the union nut, tailpiece, salt cell ports, and pipe fittings for cracks or worn threads.
- Replace damaged union hardware instead of relying on new O-rings alone.
- If the salt cell union is hard to loosen, check the Hayward Turbo Cell salt cell wrench before using force.
- Confirm whether your system needs O-rings only or a full union connection repair.
Installation Notes
Turn off the pool pump and salt chlorine generator before removing the salt cell or opening the union connection. Relieve pressure from the plumbing line before loosening the union.
Remove the old O-ring carefully and clean the sealing surface before installing the new one. Seat the replacement O-ring evenly in the correct position. Use only pool-safe O-ring lubricant if needed, and avoid petroleum-based products unless the manufacturer confirms they are safe for the material.
After installation, hand-tighten the union connection, restart the pump, and check for leaks while water is flowing.
Maintenance Tips
To help prevent future union leaks:
- Inspect O-rings whenever the salt cell is removed for cleaning.
- Replace flattened, cracked, swollen, or brittle O-rings.
- Keep union threads and sealing surfaces clean.
- Do not overtighten the union connection.
- Do not reuse damaged or stretched O-rings.
- Check for leaks after every salt cell cleaning or replacement.











