Master Spas H2X Swim Spa Replacement Filter
Hot tub · 2004-present · 2 filter cartridges
Compatible Filter Cartridges
40 sq ft · 8″ OD × 7.375″ long
Heads up: the Master Spas H2X Swim Spa runs 2 cartridges. Replace them as a set, not one at a time.
| Pleatco | PMA45-2004-R |
| Unicel | C-8341 |
| Filbur | FC-1007 |
| OEM | Master Spas X268330 |
| OEM | Master Spas X268552 |
Frequently Asked Questions
What filter cartridge does the Master Spas H2X Swim Spa use?
The Master Spas H2X Swim Spa runs the PMA45-2004-R (also sold as C-8341, 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 Master Spas H2X Swim Spa need?
2 cartridges. Replace all of them at once. If you put a fresh cartridge in next to a worn one, the new one ends up carrying disproportionate load and burns out faster than it should. Pop open the filter housing and count what's installed before you order, just to confirm the count for your specific serial number.
How often should I replace the filter on my Master Spas H2X Swim Spa?
Most Master Spas owners get 12 to 24 months out of a cartridge before replacing it, 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.