Posi-Flo 135TX - WC108-70S2X Filter Cartridge Replacement for Sta-Rite / Pentair with Unicel - SC3-SR137
Swimming Pool Filter Cartridge Replacement for Sta-Rite / Pentair Posi-Flo 135TX - WC108-70S2X.
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 # | SC3-SR137 |
| Filber # | |
| Pleatco # | |
| Filter Mfg | Sta-Rite / Pentair |
| Filter Model | Posi-Flo 135TX |
| OEM # | WC108-70S2X |
| Length | 31-1/4" |
| Outside Diameter | 8-11/16" |
| Inside Diameter Top | 4-3/16" / open |
| Inside Diameter Bottom | 4-3/16" / open w/ 12 concentric slots |
| Pleat Count | 216 |
| Square Feet | 137 |
| Notes | Note: Product has blue top end cap and orange bottom end cap. |
| Price | $102.93 |
How to Identify Your Pool or Spa's Filter Cartridge
How to Clean a Filter Cartridge
Types of Pool Filters
Last updated 1/3/2024 11:07:56 AM, by BYCAPP