Hayward Locking Knob “O” Ring – OEM Replacement Seal (SKU CX250Z7)

Restore a secure, leak-free seal on your filter locking knob with the Hayward Locking Knob “O” Ring (SKU CX250Z7). This OEM replacement O-ring is designed to maintain proper sealing and tension at the locking knob interface, helping ensure reliable filter operation and preventing air or water leaks.

Locking knob O-rings are subject to compression, heat, and chemical exposure. Over time, they can flatten, crack, or lose elasticity—resulting in seepage, air intrusion, or difficulty maintaining a tight seal. Replacing the worn O-ring with the correct factory-specified part restores proper compression and protects surrounding components.

Manufactured to meet original equipment specifications, this replacement O-ring provides a precise fit for compatible Hayward filter assemblies. Ideal for routine maintenance, filter servicing, or resolving minor leaks, it is a small but essential component for dependable pool system performance.

Key Features:
✔️ Genuine OEM Hayward locking knob O-ring
✔️ Restores proper sealing and knob tension
✔️ Helps prevent leaks and air intrusion
✔️ Durable material resistant to pool chemicals
✔️ Direct-fit replacement for compatible Hayward filters

Maintain dependable sealing and smooth filter operation with the Hayward Locking Knob “O” Ring – SKU CX250Z7, an essential maintenance part for Hayward filtration systems.