Hayward StarClear C-500 Filter Cartridge (CX500RE) airbuttons and this Gecko TSC-4 version

and this Gecko TSC-4 version is designed in a 10 button format for Pump 1

Useful when original relays are failed or unreliable

This replacement is especially valuable when the original seal has leaked

A heat exchanger is useful because it is one of the most important performance parts in the heater

A four-button topside panel can keep everyday bath or spa control simple while still providing dependable access to core functions

Hayward StarClear C-500 Filter Cartridge (CX500RE) airbuttons and this Gecko TSC-4 versionThe Hayward replacement filter cartridge is designed for compatible C500 filter applications where the internal cartridge element needs replacement. A filter cartridge is useful because it captures dirt and debris from circulating water, helping maintain cleaner water and dependable filtration performance. This replacement is especially useful when the original cartridge is torn, clogged beyond cleaning, collapsed, or no longer filtering effectively.