Hayward C500 Replacement Filter Cartridge (CX500RE) pentairamerican Tecmark 3902 universal pressure switch

Tecmark 3902 universal pressure switch

and overall system efficiency

Use part number PS-1900 when matching this item to an existing component

Supports efficient spa and hot tub operation

Smaller panels can feel cluttered when the overlay is worn

Hayward C500 Replacement Filter Cartridge (CX500RE) pentairamerican Tecmark 3902 universal pressure switchThe 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.