This Bestway pool filter cartridge, type III-A/C, is designed to keep your swimming pool water clear and clean. It plays a crucial role as the first line of defense against dirt, oils, and micro-debris, ensuring efficient filtration. The cartridge measures approximately 4.2" (10.6cm) x 4.2" (10.6cm) x 8" (20cm) and is compatible with filter pumps rated for 110-120V and 2,006-5,678 L (530-1,500 gal.) per hour, as well as 220-240V 5,678 L (1,500 gal.) per hour. Its durable design guarantees optimal water quality for enjoyable aquatic moments. The filter cartridge is easy to use and can be cleaned as needed with a garden hose. This is a one-pack replacement cartridge.