Darlly 50258 Spa Filter Cartridge
Replaces Unicel 5CH-25
- Diameter × length
- 5-5/8" × 6"
- Filter area
- 25 sq ft
- End caps
- semi-circular Handle / 1-1/2" male thread/MPT
- Per filter
- 1 cartridge
Pool and spa businesses in Florida, Georgia, South Carolina, Alabama, Mississippi, Louisiana and Texas order through their Grit Game rep. Everywhere else, contact Darlly Filtration directly.
Darlly 50258 is a 25 sq ft top-load spa filter cartridge, 5-5/8" x 6". It replaces Unicel 5CH-25.
Specifications
| Darlly part number | 50258 |
|---|---|
| Outside diameter | 5-5/8" |
| Length | 6" |
| Top end cap | semi-circular Handle |
| Bottom end cap | 1-1/2" male thread/MPT |
| Filter area | 25 sq ft |
| Type | Spa |
| Blue antimicrobial version | 50258M |
| Darlly description | top load |
Cross-reference
| Brand | Part numbers Darlly 50258 replaces |
|---|---|
| Unicel | 5CH-25 |
Filters it fits
| Filter | Cartridges per filter |
|---|---|
| top load | 1 |
Other Darlly cartridges the same size
Same diameter and length. Check the end caps and area before swapping.
Questions
- What is the Darlly replacement for Unicel 5CH-25?
- Darlly 50258 replaces Unicel 5CH-25. Both are 5-5/8" in diameter and about 6" long.
- What size is Darlly 50258?
- Darlly 50258 is 5-5/8" in outside diameter and 6" long, with 25 sq ft of filter area.
Cross-reference checked October 21, 2026 against Unicel's 2026 Replacement Guide, Pleatco's catalog (updated September 2025), filbur.com and darllyfilter.com. A competitor number is listed only when that brand's own data pairs it with the same cartridge size. Always compare the size and end caps of your old cartridge before ordering.
Brand names and part numbers are trademarks of their respective owners and are shown only to identify compatible replacements. Darlly Filtration is not affiliated with or endorsed by them. Cross-reference by The Grit Game, Darlly's sales agency.