Unicel 5CH-752 Replacement Spa Filter Cartridge – 75 Sq Ft (Cal Spas / Coleman Style, 2" MPT Thread) The Unicel 5CH-752 is a premium 75 sq ft pleated spa filter cartridge commonly used in select Cal Spas (and compatible Coleman-style) filtration systems. It features a bar/handle top for easy removal and a 2" male pipe thread (MPT) bottom connection for a secure, threaded fit in compatible filter housings. Replacing a worn cartridge helps restore circulation, improve water clarity, and reduce strain on spa pumps and heaters. Key Features 75 sq ft filtration area for strong debris capture and longer run time between cleanings Top handle for quick removal during service Bottom: 2" MPT threaded connection for proper seating and sealing Durable pleated media and rigid core designed for repeated rinsing and deep-clean cycles Ideal replacement when pleats are torn, flattened, or the cartridge stays restrictive after cleaning Specifications Part Number: 5CH-752 Filtration Area: 75 sq ft Outside Diameter: 5-3/16" Length: 16-1/8" Top End Cap: Bar handle Bottom End Cap: 2" Male Thread (MPT) Pleat Count: 194 Media: 3 oz pleated media Compatible / Replaces Common brand application: Cal Spas (verify by measurements and bottom thread style) Pleatco: PCAL60-F2M Filbur: FC-0202 Darlly: 50753 Other common references: FIL11100212 (verify by end-cap style and dimensions) Compatibility Notes This cartridge uses a threaded bottom (2" MPT). If your current filter has a slip (non-threaded) fitting or different thread size, you may need a different model. Always confirm fit by matching the OD (5-3/16"), length (16-1/8"), and 2" MPT bottom before ordering. When to Replace Flow is weak or the spa struggles to maintain circulation even after cleaning Pleats are torn, frayed, or separating from the end caps The cartridge quickly plugs up again after rinsing End caps or the threaded connection are cracked/warped and won’t seal properly Related Products Spa Cartridge Filter Cleaner Cartridge Cleaning Wand Spa Water Test Strips Spa Fill / Hose Pre-Filters Spa Scale Remover Silicone O-Ring Lubricant (Pool/Spa) Maintenance Tips Rinse the cartridge regularly (often weekly with heavy spa use) to prevent restriction and keep jets performing well. Deep clean every 3–6 weeks with a cartridge cleaner to remove oils; rinse thoroughly before reinstalling. If scale is present, degrease first, then treat for scale (never reverse the order), and rinse completely. Rotating between two cartridges (one in use, one drying after cleaning) can extend overall filter life and improve filtration consistency.
