๐ Unicel C-5601 Filter Cartridge โ 25 SQ.FT. The Unicel C-5601 filter cartridge delivers superior water clarity and longer equipment life for spas and small pools. Engineered with durable Reemayยฎ spunbond polyester media and a reinforced center core, this 25 sq. ft. cartridge efficiently captures dirt, debris, and fine particulates, ensuring your water stays clean and healthy. โ 25 sq. ft. Filtration โ Optimized for smaller spa and pool systems ๐ง Premium Pleated Media โ Maximum dirt-holding capacity and easy rinsing ๐ Reinforced Core โ Prevents collapse for reliable, long-lasting performance ๐ Reusable Design โ Simple to clean for extended cartridge life ๐ Direct OEM Replacement โ Replaces Marquis Spas 370-0237, PPM25SC-F2M, and select other OEM numbers (verify exact fit before purchase) Specifications: Filtration Area: 25 sq. ft. Length: 9 15/16" Diameter: 4 15/16" Top End Cap: 2 1/8" Open Bottom End Cap: 2 1/8" Open Media: Reemayยฎ spunbond polyester Model: C-5601 Installation & Maintenance: Turn off pump and remove old cartridge Clean filter housing thoroughly Insert Unicel C-5601 cartridge, ensuring proper fit Rinse with clean water every 2โ4 weeks Replace every 12โ18 months or as needed โจ Keep your spa or pool water sparkling and your equipment running efficiently with Unicel filter cartridges โ the trusted choice for quality and performance!