10 Best Sand Filter For Inground Pools 2025 in the United States

The Hayward W3S244T ProSeries Sand Filter is a 24-inch top-mount filter for inground pools. One of its major strengths is the efficient multilateral underdrain assembly, which includes self-cleaning 360° slotted laterals that ensure balanced flow and effective backwashing. Additionally, the integral top diffuser helps distribute water evenly over the sand media bed, enhancing filtration performance.

The filter tank is made of a rugged, colorfast polymeric material, making it corrosion-proof and durable across various weather conditions. Another convenience is the 6-position Hayward VariFlo control valve, which features an easy-to-use lever-action handle for simple operation of different valve and filter functions.

The large pressure sand/water drain allows for rapid winterizing or servicing, adding to its practicality. However, the filter weighs 48 pounds, which might be cumbersome for some users to handle. Maintenance requirements are generally straightforward with this model, but regular backwashing is necessary to keep it functioning optimally. The Hayward W3S244T ProSeries Sand Filter is best suited for users looking for a reliable and durable sand filter for their inground pool, with easy operation and efficient filtration capabilities.

The Hayward W3S310T2 Pool Sand Filter is an excellent choice for inground pools, featuring a sizable 30-inch filter that promises efficient performance. Its multilateral underdrain assembly with self-cleaning 360° slotted laterals ensures balanced flow and effective backwashing, which is ideal for maintaining water clarity.

The filter media is evenly distributed thanks to the integral top diffuser, enhancing the filtration process. The unit is built with a corrosion-proof, rugged polymeric material, ensuring durability and reliable performance across various weather conditions. Maintenance is made easier with the large pressure sand/water drain and the 6-position VariFlo control valve, which simplifies the operation with its lever-action handle.

However, the filter's weight (83 pounds) and size (32 x 32 x 48.3 inches) may require careful consideration for installation and handling. This sand filter is well-suited for users seeking a durable, efficient, and easy-to-maintain solution for their inground pools.

The Pentair 140264 Triton II Side Mount Filter TR60 is a durable fiberglass sand filter ideal for inground pools. One of its strong points is the heavy-duty closure that makes inspection easy, combined with an easy-to-read pressure gauge and air relief valve. However, the absence of the valve is a notable drawback, as it requires an additional purchase.

The swing-away diffuser is a convenient feature, granting instant access to the sand and all internal parts, which are threaded for ease of service. This makes maintenance straightforward, aided further by the combination sand and water drain for simple servicing and winterizing. The filter supports a maximum operating pressure of 50 psi, which is sufficient for most pool systems.

Durability is enhanced by its fiberglass construction, ensuring longevity and resistance to corrosion. User feedback is generally positive, with a 4.2-star rating based on 169 reviews, indicating a reliable performance. However, potential buyers should be aware of the extra cost for union connectors and the valve. This filter is well-suited for those looking for a robust and easy-to-maintain sand filter for their inground pool, provided they are willing to manage the additional purchases required.