The Unicel C-8326 is a large-capacity spa filter cartridge delivering 125 square feet of filtration across 199 pleats of Reemay® 2033 polyester media, capturing debris down to an average of 20 microns. Built to meet or exceed OEM specifications, it's the replacement for Sundance® Spas Microclean® Plus filtration systems. Filtration is the quiet backbone of clean spa water. Every soak leaves behind body oils, lotions, hair, and fine debris, and the cartridge is what removes all of it before it clouds the water, feeds bacteria, or coats your plumbing. When a filter is worn or clogged, the effects spread everywhere: dull water, higher chemical use, softer jets, and a pump and heater straining against restricted flow. This is a serious cartridge — 19 inches tall and 8-7/16 inches across, holding 125 square feet of filtering surface. That capacity is exactly what a large, jet-heavy Sundance spa demands, and it's why a single cartridge can carry the filtration load. Its 1-1/2 inch male slip fitting on top seats into the housing connection, while the 2-1/2 inch open beveled bottom completes the seal. Add sharp, uniform pleat folds that maximize flow and minimize pressure loss, plus chemical-resistant end caps, and you get a filter built to perform through cleaning after cleaning. Made in the USA. Pro Tip: If you own a Sundance spa built before 2006, check your filter housing first. Sundance models dated prior to 2006 contain a core block or plug in the filter assembly, which affects how the cartridge seats. Confirm what your spa uses before ordering — a quick look at your existing cartridge and housing saves the hassle of a return on a large filter like this one. Brand UNICEL®
