Flow Clear Filter Cartridge (Twin Pack) contains two replacement filter cartridges for 300330 galhr filter pump systems. During use, filter cartridges become clogged with debris, and the filter starts slowing down. Flow Clear Type I filters are easy to fit into a 300330 galhr filter pump and very simple to clean. Regularly rinsing your Flow Clear pool filter with running water will prolong its life and is essential for the smooth running of your filter pump system. However, this will only work for so long before you will need to replace the filter cartridge. Each filter measures 3.1in x 3.5in (8cm x 9cm) Approx. These filters will also fit other makes of pool filter - just check the measurements - it should have a diameter of 8cm (across the top of the cartridge) and a height of 9cm. Replacement filter for 1249L (330 gal) per hour filter pumps.
