10 Best Pool Filters 2025 in the United States

The Pentair EC-160301 Clean & Clear Plus 420 sq. ft. Cartridge Pool Filter is designed with a large filter area that offers an increased dirt capacity, making it efficient for keeping your pool water clean. With four polyester filter cartridges, it ensures effective filtration, capturing a wide range of debris.

The 2-inch unions facilitate easy installation and connection, while the 1-1/2 inch drain simplifies the winterization process, making seasonal maintenance less of a hassle. An internal air bleed helps maintain optimal performance by removing trapped air within the filter system.

In terms of durability, this model is well-built, weighing 74 pounds, suggesting a solid and sturdy construction. However, it is worth noting that the filter's best sellers rank is relatively low in its category, suggesting that there might be more popular alternatives available. Additionally, as a heavier unit, it may require more effort to handle and install. Maintenance typically involves cleaning the cartridges, which can be cumbersome for some users. Despite these drawbacks, the Pentair EC-160301 is a robust choice for pool owners looking for a reliable and efficient filtration system with a substantial filter area.

The Hayward W3C4030 SwimClear Cartridge Pool Filter stands out with its 425 square feet filter area, making it suitable for large pools. Its cartridge filter type is effective and eliminates the need for backwashing, which simplifies maintenance. The high-capacity manual air relief valve is a thoughtful addition, ensuring quick air bleeding with minimal effort.

Durability is another strong point, with the filter's tank crafted from robust materials designed to withstand harsh conditions. The heavy-duty flange clamp not only secures the tank but also provides easy access for maintenance. However, weighing 83 pounds, it can be cumbersome to handle and install.

While the filter performs well in hydraulic efficiency, it's essential to consider the flow rate compatibility with your pool's pump to ensure optimal performance. With a solid build, this filter is a reliable choice for pool owners looking to maintain clear and clean water with minimal hassle. However, the size and weight might be a drawback for those without assistance during installation.

The Hayward ProSeries 24-Inch Sand Filter is a solid choice for pool owners looking for a durable and efficient filtration system. It uses a sand filter type with a top-mount design that features a multilateral underdrain with self-cleaning laterals, which helps maintain balanced water flow and effective backwashing. This means it cleans itself reasonably well, reducing manual maintenance. The integral top diffuser ensures water spreads evenly over the sand, improving filtration performance. Made from corrosion-proof, rugged polymer, the filter tank is built to withstand various weather conditions, promising long-lasting durability.

The 6-position control valve is user-friendly, allowing you to switch between cleaning and filtering modes easily. Its large drain valve also makes winterizing or servicing straightforward. Weighing 48 pounds and measuring about 23 by 23 by 42 inches, it’s relatively large and may need a dedicated space in your pool setup. This Hayward model offers dependable, weather-resistant performance with simple controls and solid cleaning capability, making it a practical option for medium-sized pools.

As with any sand filter, regular backwashing is necessary to keep it running smoothly.