Darlly 11001 Pool Filter Cartridge
Replaces Unicel C-9440 · Pleatco PA100S (now ULTRA-D3) · Filbur FC-1265
- Diameter × length
- 10-1/8" × 19-1/2"
- Filter area
- 130 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 11001 is a 130 sq ft pool filter cartridge, 10-1/8" x 19-1/2". It fits the Hayward SwimClear Single Element C100S. It replaces Unicel C-9440, Pleatco PA100S (now ULTRA-D3), Filbur FC-1265 and Hayward CX100XRE.
Specifications
| Darlly part number | 11001 |
|---|---|
| Outside diameter | 10-1/8" |
| Length | 19-1/2" |
| Filter area | 130 sq ft |
| Type | Pool |
| Darlly description | Hayward CX100XRE |
Cross-reference
| Brand | Part numbers Darlly 11001 replaces |
|---|---|
| Unicel | C-9440, C-8408 (smaller 8-15/16" OD alternative) |
| Pleatco | PA100S (now ULTRA-D3), ULTRA-D3 |
| Filbur | FC-1265 |
| OEM and other numbers | Hayward CX100XRE |
Filters it fits
| Filter | Cartridges per filter | OEM cartridge number |
|---|---|---|
| Hayward SwimClear Single Element C100S (100 sq ft filter) | 1 | CX100XRE |
Questions
- What is the Darlly replacement for Unicel C-9440?
- Darlly 11001 replaces Unicel C-9440. Both are 10-1/8" in diameter and about 19-1/2" long.
- What Darlly cartridge replaces Pleatco PA100S?
- Darlly 11001 replaces Pleatco PA100S, which Pleatco now sells as ULTRA-D3.
- What size is Darlly 11001?
- Darlly 11001 is 10-1/8" in outside diameter and 19-1/2" long, with 130 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.