SpiroPure PA120 Filter Cartridge

The best way to verify compatibility is to check the part number printed on your existing filter cartridge or look at your filter housing manual. The PA120 is designed as a direct replacement for specific industry-standard models, so matching the dimensions—8.9375 inches in diameter and 23.375 inches in length—is essential.

Yes, the reinforced core provides structural integrity that prevents the cartridge from collapsing under the pressure of your pump. This ensures the pleats remain spaced correctly, allowing water to flow freely while the media captures debris effectively.

Yes, this cartridge is versatile enough for in-ground pools, above-ground pools, and hot tubs, provided your filter housing matches the 4-inch open top and bottom specifications. Always confirm your specific filter housing model to ensure a proper seal.

The 125 square feet measurement refers to the total surface area of the filter media available to trap dirt and debris. A larger surface area generally means the filter can hold more contaminants before needing to be cleaned, resulting in clearer water and less frequent maintenance cycles.

The SpiroPure PA120 is engineered to be compatible with a range of models from major brands like Hayward, Waterway Plastics, Pleatco, Unicel, and Filbur. However, because these brands manufacture various housing sizes, you should always cross-reference your specific filter model number with the PA120 specifications before purchasing.