Sundance Horizontal Spa Cartridge - 6540-490 Filter Cartridge Replacement for Sundance Spas with Unicel - C-8325
Swimming Pool Filter Cartridge Replacement for Sundance Spas Sundance Horizontal Spa Cartridge - 6540-490.
Pool filter cartridges are used to filter swimming pool water by collecting dirt, debris, algae, oils and other contaminants and filtering them out of the pool water. Cartridge filters have a much larger filtering area due to their design and construction. The pleats on a cartridge allow the filter to run at a lower pressure. As a result, the back pressure on your pool and spa pump is reduced thereby increasing the lifespan of your equipment. A pleated cartridge can trap debris as small as 10 to 15 microns (not visible to the un-aided human eye).
Cartridge filtration has been increasingly popular due to lower maintenance in comparison to old style Sand and most D.E. pool filters. There is no need to "Backwash" a cartridge filter, losing water and chemicals. There is no diatomaceous earth (D.E. - white powder substance) to deal with and the cleaning of the filter cartridge is much simpler.
Please utilize the table below to cross reference numbers and measurements as well.
| Description | Value |
|---|---|
| Unicel # | C-8325 |
| Filber # | FC-2790 |
| Pleatco # | PSD125U |
| Filter Mfg | Sundance Spas |
| Filter Model | Sundance Horizontal Spa Cartridge |
| OEM # | 6540-490 |
| Length | 18" |
| Outside Diameter | 8-1/2" |
| Inside Diameter Top | closed w/ 3-step edge |
| Inside Diameter Bottom | 2-1/2" / open w/ beveled edge |
| Pleat Count | 201 |
| Square Feet | 125 |
| Notes | Note: Length recorded is measured to first step. Replacement for 18" to 18-1/2" overall length. |
| Price | $75.21 |
How to Identify Your Pool or Spa's Filter Cartridge
How to Clean a Filter Cartridge
Types of Pool Filters
Last updated 2/22/2025 5:10:04 PM, by BYCAPP