Hayward CX900DA Knob Accessory Kit
Part Number: CX900DA
Description
A genuine accessory kit for the Hayward Star-Clear Plus cartridge filter series, designed to replace the knob and associated hardware that secure the filter tank lid and maintain proper sealing.
Compatibility & Fitment
- Compatible with Hayward Star-Clear Plus in-ground cartridge filter models C751, C900 and C1200.
- Use when the locking knob is cracked, stripped, missing, the washer or O-ring is worn, or the filter lid does not tighten properly.
- Direct replacement for systems specifying part number CX900DA.
Features & Specifications
- Includes: plastic washers (2), O-ring (1), guide cone (1) and E-clip (1).
- All components engineered for durable service in pool water environments and designed for easy installation.
Installation Notes
Turn off the pump and relieve system pressure. Remove the filter lid, take out the old knob assembly, clean the threads and seats of old hardware. Install the new kit components in correct order—washers, O-ring, guide cone and E-clip—then reinstall lid and pre-torque evenly. Restore pump operation and check for proper sealing and no leaks.
Maintenance Tip
Inspect knob assembly, O-ring and washers annually or if lid sealing becomes difficult. Replace the kit if any component shows wear, cracking or corrosion to maintain safe, efficient filter operation.
