Darlly 70902 Spa Filter Cartridge
Replaces Unicel 7CH-90 · Pleatco PSD90P4 (discontinued) · Filbur FC-2770
- Diameter × length
- 7" × 19"
- Filter area
- 90 sq ft
- End caps
- 2-1/2" Open w/ beveled edge / 1-1/2" male thread/MPT
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 70902 is a 90 sq ft spa filter cartridge, 7" x 19". It replaces Unicel 7CH-90, Pleatco PSD90P4 (discontinued) and Filbur FC-2770.
Specifications
| Darlly part number | 70902 |
|---|---|
| Outside diameter | 7" |
| Length | 19" |
| Top end cap | 2-1/2" Open w/ beveled edge |
| Bottom end cap | 1-1/2" male thread/MPT |
| Filter area | 90 sq ft |
| Type | Spa |
| Darlly description | Sundance, 19"w/ 1-1/2" MPT |
Cross-reference
| Brand | Part numbers Darlly 70902 replaces |
|---|---|
| Unicel | 7CH-90 |
| Pleatco | PSD90P4 (discontinued) |
| Filbur | FC-2770 |
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 7CH-90?
- Darlly 70902 replaces Unicel 7CH-90. Both are 7" in diameter and about 19" long.
- What Darlly cartridge replaces Pleatco PSD90P4?
- Darlly 70902 replaces Pleatco PSD90P4.
- What size is Darlly 70902?
- Darlly 70902 is 7" in outside diameter and 19" 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.