We offer pool filter cartridges, DE grids, filter cleaning devices and pool filter tank o'rings for brands such as Hayward, Pentair, Waterway, Jacuzzi and many more. We also offer other swimming pool periphials that can make pool maintenance easier and faster. Not only do we sell pool products but we offer many insightful and informative articles on pool care. Please visit Informative Articles to learn more. We offer FREE SHIPPING WTIH SMALL HANDLING FEE $8 for the entire order. PCD has been a TRUSTED SOURCE since 2008, if you'd like to know more about us and some of our policies please visit About Us.