Dive into pristine waters with the Hurricane HF8399-01 Advanced Cartridge Filter, where unparalleled cleanliness awaits. Crafted with meticulous precision, these filters guarantee seamless compatibility with various models including Unicel C-8399, Pleatco PCD100W, Filbur FC-3965, Caldera 100, and other compatible models. With dimensions measuring 16.5 inches in length, an outer diameter of 8 inches, the top closed with a strong handle, and the bottom hole being 3.63 inches MPT threaded, achieving an ideal fit is effortless, measure your current filter for a flawless match. Experience a new level of filtration prowess with this spa essential's advanced point bond filter media, elevating filtration effectiveness beyond traditional non-woven materials. From biomass to dirt, debris, hair, leaves, and even critters, these filter cartridges are a formidable barrier, leaving your pool or spa immaculate and inviting. Esteemed by both industry professionals and homeowners, these spa accessories are meticulously engineered for durability, ensuring prolonged service life and effortless upkeep. Bid farewell to the inconvenience of frequent replacements and welcome substantial savings on filters, all while minimizing wear and tear on your pump. Discover the exceptional cleaning prowess of the Hurricane HF8399-01 Advanced Cartridge Filter, your ultimate solution for pristine waters and unparalleled excellence.