Darlly 40025-2PK FC-3753 C-4313 PBW4PAIR Spa/Pool Filter Cartridge watercousa or no longer transfers air

or no longer transfers air pressure consistently

Useful when original partial grids are worn or damaged

The SX164C is a practical replacement for compatible Hayward filter systems that need renewed stand support and cleaner long-term stability

Filter cartridge for compatible applications using FC-2385

Darlly 40025-2PK FC-3753 C-4313 PBW4PAIR Spa/Pool Filter Cartridge watercousa or no longer transfers airA filter cartridge set helps refresh the filtration side of the system when matched cartridges are needed together, and this Darlly 2 pack is designed for compatible applications referencing FC 3753, C 4313, and PBW4PAIR. When a system relies on paired cartridges, replacing them as a coordinated set can create a cleaner and more balanced maintenance result. The two pack format gives this product practical value because some filter systems are designed