Keep your swimming pool safer and cleaner with the summer waves type a/c filter cartridges, now in a convenient value 3-pack. These replacement filter cartridges filter out debris, dirt, and other contaminants thanks to ultra-fine, heavy-duty paper with more pleats than your average pool filter cartridge. This allows them to catch and hold onto fine dirt and sand without it getting recirculated back into the pool water. Every cartridge only needs to be replaced every 2 weeks, giving you the time to enjoy a refreshing summer all season long. Easily swap the filter cartridge with a stress-free process, and spend more time relaxing in a debris-free, clear, and sparkling swimming pool. These specific filter cartridges are compatible with other 10.5-centimetre by 20.3-centimetre filter pumps. Enjoy a sparkling clean swimming pool or spa by keeping your pool filter working its best. You'll have the cleanest water on the block with the summer waves type a/c filter cartridges.