The Unicel C-8499 is a large-capacity replacement filter cartridge delivering 100 square feet of filtration across 168 pleats of heavyweight 4 oz Reemay® polyester media. Built to meet or exceed OEM specifications, it replaces part 18112R0100 and fits Astral and Speck Pumps systems.
Filtration is the quiet backbone of clean water. Body oils, lotions, hair, and fine debris all have to come out, or they cloud the water, feed bacteria, and coat your plumbing. When a filter is worn or clogged, the effects spread everywhere: dull water, higher chemical use, weaker circulation, and a pump and heater straining against restricted flow.
Two things set this cartridge apart. First, it’s big — nearly 20 inches tall and almost 9 inches across, carrying a full 100 square feet of media. Second, it uses 4 oz Reemay rather than the 3 oz fabric found in most cartridges: a denser, more substantial material that stands up better to repeated cleanings and resists the matting that shortens a filter’s life. Its trilobal fibers — three-lobed rather than round — deliver roughly 45% more surface area than standard filter fibers. Open end caps with lip seals at both top and bottom complete the design. Made in the USA.
Pro Tip: This cartridge seals at both ends — check yours before ordering. Most filters have a handle, a threaded fitting, or a closed cap on one end, but the C-8499 is open with a lip seal at the top and the bottom. Those molded seals are what force water through the pleats instead of around the cartridge, so both ends have to seat squarely in the housing. If your current filter has a handle or a threaded stub, it’s a different part.
Brand
UNICEL®
