Part Number CX900G: This locking knob replacement kit is designed for Hayward Star Clear Plus Cartridge Filter Models including C900, C9002, C1200, C12002, C12002S, and C751, ensuring proper fit and compatibility. Easy Installation Process: Remove the damaged knob and replace it with the new CX900G knob. This process requires no special tools, making it suitable for non-professionals and allowing for quick installation. Durable Material Construction: Made from high-density plastic, the CX900G locking knobs are built for long-term use. The material enhances durability and performance, providing a reliable solution for frequent use and environmental exposure. Compatibility Confirmation: Verify your filter model before purchase to ensure compatibility with the CX900G locking knob. This helps prevent returns due to mismatched parts. Enhanced Product Performance: The CX900G locking knob replaces a damaged component and helps maintain the functionality of your filtration system. It is designed to meet or exceed original equipment specifications for reliable performance. Material: Plastic Color: As shown Package Contents: 1 x Locking Knob (CX900G), 1 x Guide Cone (CX900D), 1 x E-Ring (CX900J), 2 x Washer (CX900W), 1 x O-Ring (CX900H), 1 x Directional Vent Valve with O-Ring (ECX1322A) Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.