Marquis Retreat Replacement Filter
Hot tub · 1995-1999 · 1 filter cartridge
Part of the 1995-1999 Marquis Pacific series, all of which take the closed-top PPM35TC. Marquis OEM 370-0215 and 20045.
Compatible Filter Cartridges
| Pleatco | PPM35TC |
| Unicel | C-5423 |
| Filbur | FC-3623 |
| OEM | Marquis 370-0215 |
| OEM | Marquis 20045 |
Frequently Asked Questions
What filter cartridge does the Marquis Retreat use?
The Marquis Retreat (1995-1999) runs the PPM35TC (also sold as C-5423, 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 Retreat 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 Retreat?
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.