Darlly 70901 Pool Filter Cartridge
Replaces Unicel C-7409 (discontinued) · Pleatco PD90SL (discontinued) · Filbur FC-4020
- Diameter × length
- 7" × 26-1/4"
- Filter area
- 90 sq ft
- End caps
- injection molded knob Handle / 1-1/2" Open
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 70901 is a 90 sq ft pool filter cartridge, 7" x 26-1/4". It replaces Unicel C-7409 (discontinued), Pleatco PD90SL (discontinued) and Filbur FC-4020.
Specifications
| Darlly part number | 70901 |
|---|---|
| Outside diameter | 7" |
| Length | 26-1/4" |
| Top end cap | injection molded knob Handle |
| Bottom end cap | 1-1/2" Open |
| Filter area | 90 sq ft |
| Type | Pool |
| Darlly description | Doughboy Skim-Line |
Cross-reference
| Brand | Part numbers Darlly 70901 replaces |
|---|---|
| Unicel | C-7409 (discontinued) |
| Pleatco | PD90SL (discontinued) |
| Filbur | FC-4020 |
Questions
- What is the Darlly replacement for Unicel C-7409?
- Darlly 70901 replaces Unicel C-7409. Both are 7" in diameter and about 26-1/4" long.
- What Darlly cartridge replaces Pleatco PD90SL?
- Darlly 70901 replaces Pleatco PD90SL.
- What size is Darlly 70901?
- Darlly 70901 is 7" in outside diameter and 26-1/4" long, with 90 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.