Hayward Star-Clear Locking Knob for StarClear Cartridge Filter 50 Sq.Ft. | CX250G
Hayward Star-Clear Locking Knob for StarClear Cartridge Filter 50 Sq.Ft. | CX250G
Hayward Star-Clear Locking Knob | CX250G

Hayward Star-Clear Locking Knob for StarClear Cartridge Filter 50 Sq.Ft. | CX250G

Regular price$36.99
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$9.99 flat shipping on orders under $100.
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SKU:
CX250G
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About This Item

The Hayward Star-Clear Locking Knob (CX250G) is the OEM replacement locking knob for the StarClear cartridge filter, securing the filter lid firmly in place during operation.

This locking knob holds the filter lid assembly in its closed position, maintaining a sealed pressure envelope across the filter tank. Replacing a worn, cracked, or stripped knob restores a secure, leak-free lid closure on the filter.

Specifications

Hayward Part Number CX250G
UPC 610377004558

Fits Into

Brand Equipment Line Model / Part Number
Hayward StarClear Cartridge Filter 50 Sq.Ft. (Open Line) W3C500

Compatibility is based on Hayward parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Poolaroo Pro Tip

When installing the replacement locking knob, hand-tighten only — over-torquing a plastic knob can strip the threads or crack the knob body, leading to the same lid-sealing issue you're solving. Inspect the lid O-ring at the same time; a damaged O-ring will cause leaks regardless of how securely the knob is tightened.

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Hayward

About Hayward

Founded in 1925, Hayward has evolved from a small specialty metal shop in Brooklyn into a global powerhouse in residential and commercial pool equipment. For nearly a century, Hayward has pioneered advancements that revolutionized the swimming pool industry—most notably by transitioning pool equipment from heavy, rust-prone metals to durable, corrosion-resistant thermoplastics in the 1960s.

Today, Hayward is synonymous with reliable, energy-efficient performance and cutting-edge technology. From the legendary Super Pump to their modern Omni smart pool automation platforms, Hayward builds equipment designed to give pool owners total control and peace of mind. By focusing on sustainability, category-leading energy efficiency, and seamless smart home integration, Hayward empowers DIY homeowners to spend less time maintaining their water and more time enjoying their backyard oasis.

Why We Trust Hayward
A Century of Innovation: Over 100 years of engineering excellence, leading the industry from early metal valves to modern smart pool technology.
Unmatched Energy Efficiency: Pioneers of ultra-high efficiency variable-speed pumps and heating systems, saving pool owners money on monthly energy bills.
Total Smart Control: Creators of the Omni automation platform, giving users seamless, wireless control of pool chemistry, lighting, and temperature from their smartphones.
American Manufacturing Focus: The vast majority of Hayward products and components are proudly manufactured in United States facilities, ensuring strict quality control and dependable performance.

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