SpiroPure Replacement Spa Filter for Cal Spa FIL50-5D13H15FCT – 50 SF Media

Elevate spa filtration with a trusted SpiroPure cartridge

Designed to fit Cal Spa models and a broad range of compatible cartridges, the SpiroPure replacement filter presents a compact, durable solution. It uses 50 square feet of filtration media and ships with precise dimensions: outer diameter of 4 15/16 inches and a length of 13 1/2 inches. The top features a closed-handle design while the bottom adopts a 2-inch female SAE thread, making installation straightforward and secure.

Solid compatibility and dependable filtration

This cartridge is listed as compatible with Cal Spa FIL50-5D13H15FCT FIL11100208, Pleatco PWW50L and PWW50L-M, Unicel 4CH-949, Filbur FC-0172 and FC0172M, Waterway 817-4050, Baleen AK-90091, Pure N Clean PC-0172, and related replacements. If your system uses any of these models, you have a practical option to maintain your filtration routine without changing other components.

• Media: 50 SF of filtration material to capture dirt, debris, and particulates from spa water.
• Durable design: a strong inner core provides structural integrity without hindering water flow or filtration performance.
• Ease of installation: designed for straightforward substitution with compatible threaded connections.

What you may notice in your spa

Users may experience clearer water, improved filtration performance, and a steady flow as water passes through the media. The combination of durable media and a robust core supports consistent filtration under typical spa operating conditions.

• Cleaner water appearance and aroma due to effective debris capture.
• Potentially longer intervals between replacements thanks to higher dirt-holding capacity.
• Effortless maintenance through simple removal and reinstallation when refreshing the cartridge.

Practical use cases and tips

Whether you maintain a hot tub, spa, or pool setup, this cartridge is intended to be a reliable part of your routine. Expect straightforward installation and broad compatibility across several popular cartridge families, offering flexible replacement options across brands.