Keep spa and pool water sparkling with the Darlly Spa/Pool Filter Cartridge 40260 (4CH-24). This 25 sq ft replacement is built for reliable filtration in 1.5" MPT housings, delivering steady flow and clearer water between cleanings.
Broad compatibility, easy swap
-
Sq. Ft. of filtration: 25
-
Outer dimension: 4-5/8"
-
Length: 9-3/4"
-
End caps: molded cone handle for simple removal and installation
-
Connection: 1.5" MPT
Identical to popular configurations
This cartridge is engineered as a direct replacement and is described as identical to FC-0131, PGS25, P420254-238, 4CH-24, and 4CH-30 models. If your system uses a 25 sq ft cartridge with a 1.5" MPT inlet/outlet, this Darlly 4CH-24 fits the bill without adapters or modifications.
Why this matters
With a true 25 sq ft filtration surface, you get balanced clean water and efficient filtration without overburdening the pump. The molded cone end caps and standard 1.5" MPT connection simplify installation and removal, reducing maintenance time so you can spend more time enjoying your spa or pool.
What problems it solves
- Restores filtration performance by replacing worn or clogged cartridges
- Fits a range of 1.5" MPT filter housings, reducing the need for multiple cartridge sizes
- Supports consistent water clarity and proper flow in spa and pool systems
Ideal use scenarios
- Replacement cartridge for mid- to large-size spa and pool filters using 25 sq ft cartridges
- Seasonal maintenance where quick, reliable swaps are preferred
- Pro or DIY filter care where inventory is standardized around 4CH-24 equivalents
Practical tips for installation and care
- Turn off the pump and relieve pressure before removing or installing the cartridge
- Inspect and clean the O-rings and connector surfaces for a proper seal
- Rinse the new cartridge with clean water to remove any dust from packaging
- Recheck the fit after installation and hand-tighten to avoid cross-threading
- Monitor flow and pressure; replace when flow drops or pressure rises significantly
