Hayward CX1280XRE Filter Cartridge
Hayward OEM number • 131 sq ft • 7″ OD × 32.75″ long
CX1280XRE is Hayward's number for this cartridge, not a part you have to buy from Hayward. The filter itself is a 131 square foot cartridge measuring 7 inches across and 32.75 inches long, and Pleatco, Unicel, and Filbur all build it. If you read CX1280XRE off an old cartridge or found it in your manual, any of the numbers below drops into the same housing.
Fitment notes
3-inch top and bottom openings. Hayward SwimClear C5020, C5025, C5030 (4 cartridges required, 525 sq ft total).
What to buy instead
Replacements for the Hayward CX1280XRE
Each button searches Amazon for one of the numbers this cartridge is sold under. The OEM version is usually the most expensive of the set and the aftermarket versions are the same physical filter, so it is worth checking all of them before you order.
Every number for this filter
| Brand | Part Number | Type |
|---|---|---|
| Hayward | CX1280XRE | The number you searched |
| Pleatco | PA131 | Aftermarket equivalent |
| Unicel | C-7494 | Aftermarket equivalent |
| Filbur | FC-1227 | Aftermarket equivalent |
Full specs, the cartridge diagram, and the complete compatibility list live on the PA131 cartridge page. You can also see every 7″ × 32.75″ cartridge if you are checking a measurement rather than a part number.
Equipment that uses this cartridge
Looking for a different model? Browse every Hayward model we cover.
Frequently Asked Questions
What filter replaces the Hayward CX1280XRE?
The PA131 replaces it directly, and so does every cross-reference for it: C-7494, FC-1227. All of them are the same 131 sq ft cartridge at 7" outer diameter and 32.75" long. Buy whichever is cheapest at the time with solid recent reviews.
Is the Hayward CX1280XRE the same as the PA131?
Yes, physically the same filter. Hayward CX1280XRE is an OEM number, meaning it is the code Hayward put on the cartridge that shipped with the equipment. Hayward does not manufacture cartridges. Pleatco, Unicel, and Filbur do, and they sell the identical part under their own numbers at a lower price. Match the dimensions against your old cartridge before ordering and you are covered.
Do I have to buy the Hayward version?
No. Nothing about the housing requires an OEM-branded cartridge, and the warranty on your equipment is not voided by using an aftermarket filter that meets the same spec. The reason to buy OEM is convenience, not performance. The reason not to is price, which is often a meaningful gap for an identical part. What matters is that outer diameter, length, and end-cap style all match.
What size is the Hayward CX1280XRE?
7 inches in outer diameter, 32.75 inches long, with 131 square feet of filter media. Both measurements need to land within about an eighth of an inch, and the end caps have to match so the cartridge seats correctly when you close the lid. Measure your old one rather than trusting a number that has worn off the label.
Data updated July 2026