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Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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OEM Hayward Filter Head CX900B is an essential replacement part for maintaining the functionality of Hayward Star-Clear Plus filter systems, including models C751 and C900. This genuine filter head includes a directional vent valve to release air and balance internal pressure for optimal filtration. Built from durable, pool-grade materials, it ensures secure cartridge placement and dependable water clarity. Easy to install, it’s ideal for restoring performance in aging or worn filter assemblies.
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Designed for Star-Clear Plus Filters: Compatible with Hayward models C751 and C900, offering a precise OEM-grade replacement
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Improves Air Management: Directional vent valve helps eliminate trapped air, stabilizing filter pressure and enhancing performance
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Reliable Cartridge Positioning: Locks the cartridge in place for uninterrupted water flow and filtration consistency
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Built to Endure Pool Use: Made from high-quality materials that resist wear from chlorine, heat, and outdoor exposure
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Maintains Filter Efficiency: Supports long-term system function by replacing worn components that could hinder water clarity
- (1) Hayward CX900BFilter Head
- Hayward Star-Clear Plus Filter Models: C751, C900
Note: This filter head may be compatible with your filter, please refer to your systems owners manual to ensure compatibility.





