What This Part Is Used For The Hayward CX400D Locking Ring Latch secures the filter head locking ring to the tank body. It ensures the housing remains tightly fastened during operation. Why This Part Matters A broken latch can prevent proper sealing and cause leaks. Replacing it restores secure closure and safe pressure control. This helps maintain reliable filter performance. Key Features and Specifications Manufacturer part number CX400D Locking ring latch For compatible Hayward filter systems Secures locking ring to tank Replacement fastening component Installation and Fitment Guidance Turn off the pump and relieve pressure before servicing. Ensure the latch engages fully during reassembly. Confirm by manufacturer part number before ordering. About the Hayward Brand Hayward produces cartridge filtration systems with serviceable locking hardware. Their replacement latches are widely supported in maintenance calls. Genuine Hayward parts help maintain safe assembly. Common Service Context Often replaced when latches crack or fail to hold tension. Common during filter rebuilds.