Product Details
- Product type: Duck bill replacement set
- Brand: Hayward
- Part number: GLX-SP-DB
- Quantity: Set of 2
- Use: Replacement duck bill parts for compatible Hayward systems
- Compatible system type: Select Hayward salt chlorine generator and chemical feed setups
- Best use case: Replacing worn or damaged duck bills during maintenance or repair
- Package contents: Set of 2 duck bills; confirm whether any additional small parts are included before purchase
- Installation requirement: Confirm system compatibility and follow Hayward service instructions before use
Compatibility and Buyer Check
Before ordering, confirm that your Hayward system manual or existing part calls for GLX-SP-DB. These parts should be selected by part number and system compatibility, not by image alone.
If you are servicing the same chemical feed setup, check the Hayward GLX-SP-TANK acid feed tank replacement and Hayward GLX-SP-ROLLER roller assembly before replacing only the duck bill parts.
If your system is not feeding properly, the issue may also involve the pump. In that case, compare the Hayward GLX-SP 120V peristaltic pump and Hayward GLX-SP 240V peristaltic pump before ordering only the duck bill set.
What These Duck Bill Parts Do
Duck bill parts help control flow direction in compatible Hayward chemical feed assemblies. When they become worn, stuck, blocked, or damaged, the system may not feed correctly or may lose proper sealing.
Replacing the duck bills can help restore proper operation when the tank, tubing, pump, roller assembly, and controller are still in good working condition. These parts will not fix a failed pump, damaged tank, bad wiring, controller error, or incorrect chemical setting.
Before You Order
Check these details before purchasing:
- Confirm the exact part number GLX-SP-DB.
- Verify that your Hayward system uses this duck bill replacement set.
- Inspect the old duck bills for clogging, wear, cracking, or chemical buildup.
- Check the acid feed tank, tubing, and pump parts for related damage.
- Confirm whether you need duck bills only or a larger repair on the chemical feed system.
- If you are checking the broader AquaTrol setup, compare your equipment with the Hayward W3AQ-TROL-RJ AquaTrol salt chlorination system.
- Follow all chemical handling instructions before servicing the feed system.
Installation and Safety Notes
Turn off the chemical feed system and pool equipment before removing old parts. If the system has handled acid or chemical solution, follow the chemical label and Hayward manual for safe handling.
Install the replacement duck bills in the correct direction and position. Do not force the parts into place. If the parts do not seat correctly, inspect the surrounding fittings, tubing, and pump assembly before restarting the system.
After installation, run the system long enough to check for proper operation, leaks, and any signs of poor feed performance.
Maintenance Tips
To help the replacement duck bills work properly:
- Inspect duck bills during routine chemical feed service.
- Replace clogged, stiff, cracked, or worn parts promptly.
- Keep the chemical feed tank and tubing clean and properly connected.
- Do not use damaged tubing or fittings with new duck bill parts.
- Check pump rollers and feed lines if the system still does not feed correctly.
- Follow Hayward instructions for service intervals and chemical compatibility.












