Bestway Filter Cartridge II for 530800 galhr Pump comes with two replacement water filter cartridges for 530800 galhr filter pump systems Unless the whiff of filthy water fills your nose with joy, it’s vital that you replace your pool cartridge on a regular basis It’s likely that your Bestway pool will be used daily during periods of sunny weather The more an above ground swimming pool is used, the quicker a filter cartridge becomes blocked with dirt and debris Before long your filter pump starts working like a whiskey slugging drunkard and your pool looks like a sink in a greasy spoon Bestway Type II filters are very easy to fit into a 530800gal filter pump They take no time at all to rinse out and clean, which is great if you have a busy schedule and important for the upkeep of healthy pool water