Darlly ST200 Pool Filter Cartridge
- Diameter × length
- 12-15/16" × 18-5/16"
- Filter area
- 200 sq ft
- 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 ST200 is a 200 sq ft pool filter cartridge, 12-15/16" x 18-5/16". It fits the Sta-Rite System 2 PLM200.
Specifications
| Darlly part number | ST200 |
|---|---|
| Outside diameter | 12-15/16" |
| Length | 18-5/16" |
| Filter area | 200 sq ft |
| Type | Pool |
| Darlly description | System 2 Filters PLM200 |
Filters it fits
| Filter | Cartridges per filter |
|---|---|
| Sta-Rite System 2 PLM200 (200 sq ft filter) | 1 |
No Unicel, Pleatco or Filbur equivalent.
Other Darlly cartridges the same size
Same diameter and length. Check the end caps and area before swapping.
Questions
- What size is Darlly ST200?
- Darlly ST200 is 12-15/16" in outside diameter and 18-5/16" long, with 200 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.