Marquis Vector21 Replacement Filter
Hot tub · 2016-present · 1 filter cartridge
One filter covers the whole Vector21 line from 2016 on, from the V65L up to the V94: Marquis part 20092, the threaded 35 sq ft cartridge, one per tub. Unicel sells it as the 5CH-352. It is the same part the 35 sq ft Signature Series tubs take, which is worth knowing if you own both or your dealer stocks one.
Compatible Filter Cartridges
| Pleatco | PPM35SC-F2M |
| Unicel | 5CH-352 |
| Filbur | FC-0195 |
| OEM | Marquis 20042 |
| OEM | Marquis 20092 |
Frequently Asked Questions
What filter cartridge does the Marquis Vector21 use?
The Marquis Vector21 (2016-present) runs the PPM35SC-F2M (also sold as 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 Vector21 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 Vector21?
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.