The cartridge filter pump Intex 28602 is designed for circulation and purification of water in the pool from various contaminants. The filter pump is connected to regular openings in the Intex pool. Water enters the filter pump through a hose, passes through the paper cartridge, leaving dirt on it, and flows back into the pool. The paper cartridge needs to be changed every 2 to 3 weeks. Cartridge filter pump 28602 Intex is recommended for frame pools of the Metal Frame series, as well as inflatable pools of the Easy Set series up to 5 m 3.