Darlly 71371 Pool Filter Cartridge
Replaces Unicel C-7490 · Pleatco PA137 (now ULTRA-A2) · Filbur FC-1297
- Diameter × length
- 7" × 32-13/16"
- Filter area
- 137 sq ft
- End caps
- 3" Open w/ molded gasket / 3" Open w/ molded gasket
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 71371 is a 137 sq ft pool filter cartridge, 7" x 32-13/16". It fits the Hayward Super-Star-Clear C5500 and SwimClear C5520, which take 4 cartridges each. It replaces Unicel C-7490, Pleatco PA137 (now ULTRA-A2), Filbur FC-1297, Hayward CX1380XRE and Hayward CX1380RE.
Specifications
| Darlly part number | 71371 |
|---|---|
| Outside diameter | 7" |
| Length | 32-13/16" |
| Top end cap | 3" Open w/ molded gasket |
| Bottom end cap | 3" Open w/ molded gasket |
| Filter area | 137 sq ft |
| Type | Pool |
| Cartridges per filter | 4 |
| Darlly description | Hayward CX1380RE |
Cross-reference
| Brand | Part numbers Darlly 71371 replaces |
|---|---|
| Unicel | C-7490 |
| Pleatco | PA137 (now ULTRA-A2), ULTRA-A2 |
| Filbur | FC-1297 |
| Hurricane (former brand) | HF7490-04 |
| OEM and other numbers | Hayward CX1380XRE, Hayward CX1380RE |
Filters it fits
| Filter | Cartridges per filter | OEM cartridge number |
|---|---|---|
| Hayward Super-Star-Clear C5500; SwimClear C5520 (550 sq ft filter) | 4 | CX1380XRE, CX1380RE |
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-7490?
- Darlly 71371 replaces Unicel C-7490. Both are 7" in diameter and about 32-13/16" long.
- What Darlly cartridge replaces Pleatco PA137?
- Darlly 71371 replaces Pleatco PA137, which Pleatco now sells as ULTRA-A2.
- How many cartridges does the Hayward Super-Star-Clear C5500 use?
- It takes 4 cartridges. Order 4 of Darlly 71371 to replace the full set.
- What size is Darlly 71371?
- Darlly 71371 is 7" in outside diameter and 32-13/16" long, with 137 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.