Darlly ST036 Pool Filter Cartridge
- Diameter × length
- 12-15/16" × 18-5/16"
- Filter area
- 36 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 ST036 is a 36 sq ft pool filter cartridge, 12-15/16" x 18-5/16". It fits the Sta-Rite System 2 PLD36 (D.E.).
Specifications
| Darlly part number | ST036 |
|---|---|
| Outside diameter | 12-15/16" |
| Length | 18-5/16" |
| Filter area | 36 sq ft |
| Type | Pool |
| Darlly description | System2 filters PLD 36 |
Older or other numbers that also point to this cartridge (not confirmed by a second source): PLD36 (Sta-Rite).
Filters it fits
| Filter | Cartridges per filter |
|---|---|
| Sta-Rite System 2 PLD36 (D.E.) (36 sq ft filter) | 1 |
Polypropylene cloth element for D.E. filters.
Other Darlly cartridges the same size
Same diameter and length. Check the end caps and area before swapping.
Questions
- What size is Darlly ST036?
- Darlly ST036 is 12-15/16" in outside diameter and 18-5/16" long, with 36 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.