The (4-Pack) Pool Pure Filters Pol-plf105a are high-quality pool filter cartridges designed for both above ground and in ground pools. Manufactured by PoolPure, these units are specifically modeled as Pol-plf105a cartridges. This product ensures clean and clear pool water by effectively removing debris and contaminants, providing a refreshing and enjoyable swimming experience. Made with durable materials and advanced technology, these filters are a practical and reliable choice for maintaining pool water quality.