Marquis Signature Replacement Filter
Hot tub · 2000-2021 · 1 filter cartridge
Marquis lists two filters for the Signature Series over this run, and both are below. Part 20091 is the 50 sq ft version, part 20092 the 35. They share a 5-3/16 inch body, a bar handle top and the same 2 inch male thread, so the size printed on the end cap is the only thing that separates them. Pull your old cartridge and read it before ordering. A 1997-1999 Signature takes neither: that one slips on, and it is filed here as the Signature Legacy.
Compatible Filter Cartridges
| Pleatco | PPM50SC-F2M |
| Unicel | 5CH-502 |
| Filbur | FC-0195 |
| OEM | Marquis 20041 |
| OEM | Marquis 20091 |
| Pleatco | PPM35SC-F2M |
| Unicel | 5CH-352 |
| Filbur | FC-0195 |
| OEM | Marquis 20042 |
| OEM | Marquis 20092 |
Frequently Asked Questions
What filter cartridge does the Marquis Signature use?
The Marquis Signature (2000-2021) runs the PPM50SC-F2M (also sold as 5CH-502, PPM35SC-F2M, 5CH-352, the same physical cartridge with a different sticker). Confirm by reading the label inside the filter compartment or the part number printed on the end cap of your existing cartridge before you order.
How many filters does the Marquis Signature need?
One cartridge. That said, some Marquis models in the same series use two, so it's worth opening the filter compartment and confirming what's actually installed before you order.
How often should I replace the filter on my Marquis Signature?
Most Marquis owners get 12 to 24 months out of a cartridge, depending on how heavily the spa is used. Rinse it monthly with a hose, hitting the pleats at about a 45-degree angle. Soak it overnight in filter cleaner every three to four months. Replace it when the pleats are torn, the seams are stained brown and won't come clean, or a soak no longer drops the post-rinse pressure.