Cartridge Filters For Inground & Above Ground Swimming Pool

Keep your water sparkling without the hassle of backwashing. A quality pool cartridge filter is one of the simplest upgrades you can make for cleaner, clearer water — and our collection covers every pool size, from compact above ground setups to large inground systems. With options from Hayward, Pentair, Waterway, and Waterco, you'll find the right filtration surface area and flow rate for your setup, starting from just $12.50.

Cartridge filters work by trapping debris in tightly pleated polyester media, requiring no backwash valve and using significantly less water than sand or DE alternatives. The Hayward SwimClear (525 sq ft) and XStream series handle high-volume inground pools with ease, while the Pentair Clean & Clear Plus 420 and Waterway Crystal Water 325 deliver reliable multi-cartridge filtration with easy element access. For spa and smaller pool applications, the Pentair Rainbow RTL series covers 25–50 sq ft configurations. Browse our full range of filter parts and accessories to keep your system running at peak efficiency. Learn what to look for when selecting filtration surface area at Hayward's official filter selection guide.

Maintenance couldn't be simpler — most pool cartridge filters only need a rinse with a garden hose every 2–6 weeks, and replacement cartridges are available for every major brand in our replacement filter cartridge collection. NSF-certified options are available across multiple brands, giving you confidence in water safety and filtration performance. Whether you're replacing a failed unit mid-season or upgrading an aging sand filter, switching to a cartridge system means less maintenance time and more time in the water. For guidance on matching cartridges, see Pentair's pool filter resource center.

Shop the full range of pool cartridge filters for inground and above ground pools — and enjoy cleaner water with less effort all season long.