General description These CSPARKV inflatable pool filter cartridges are designed as replacements for Whirlpool spas and inflatable swimming pools. This pack includes 4 cartridges that ensure effective automatic water filtration, removing impurities and preventing dust from entering the pump and heater, thereby extending their lifespan. Technical specifications Dimensions: 10.6 cm x 6.7 cm Installation Easy replacement with a practical click closure.