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 wont 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 36 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.
