Darlly 80951 Pool Filter Cartridge
Replaces Unicel C-8409 · Pleatco PA90 (now ULTRA-B6) · Filbur FC-1292
- Diameter × length
- 8-15/16" × 17-3/8"
- Filter area
- 90 sq ft
- End caps
- 4" Open w/ molded gasket / 4" Open w/ molded gasket
- 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 80951 is a 90 sq ft pool filter cartridge, 8-15/16" x 17-3/8". It fits the Hayward Star-Clear Plus C900, the Sta-Rite Posi-Clear PXC-95 and the Waterway Clearwater II 100 and Pro-Clean 100. It replaces Unicel C-8409, Pleatco PA90 (now ULTRA-B6), Filbur FC-1292, Hayward CX900RE and Sta-Rite 25230-0095S.
Specifications
| Darlly part number | 80951 |
|---|---|
| Outside diameter | 8-15/16" |
| Length | 17-3/8" |
| Top end cap | 4" Open w/ molded gasket |
| Bottom end cap | 4" Open w/ molded gasket |
| Filter area | 90 sq ft |
| Type | Pool |
| Darlly description | Hayward CX900RE, Sta-Rite PXC-95, Waterway Pro Clean 100, Waterway Clearwater II 100 |
Cross-reference
| Brand | Part numbers Darlly 80951 replaces |
|---|---|
| Unicel | C-8409 |
| Pleatco | PA90 (now ULTRA-B6), ULTRA-B6 |
| Filbur | FC-1292 |
| Hurricane (former brand) | HF8409-01 |
| OEM and other numbers | Hayward CX900RE, Sta-Rite 25230-0095S, Waterway 817-0100N, Waterway 817-0100P |
Filters it fits
| Filter | Cartridges per filter | OEM cartridge number |
|---|---|---|
| Hayward Star-Clear Plus C900 (90 sq ft filter) | 1 | CX900RE |
| Sta-Rite Posi-Clear PXC-95 (90 sq ft filter) | 1 | 25230-0095S |
| Waterway Clearwater II 100; Pro-Clean 100 (100 sq ft filter) | 1 | 817-0100N, 817-0100P |
Also made as PP80951, the same size.
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 C-8409?
- Darlly 80951 replaces Unicel C-8409. Both are 8-15/16" in diameter and about 17-3/8" long.
- What Darlly cartridge replaces Pleatco PA90?
- Darlly 80951 replaces Pleatco PA90, which Pleatco now sells as ULTRA-B6.
- What size is Darlly 80951?
- Darlly 80951 is 8-15/16" in outside diameter and 17-3/8" 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.