Dynamic Series II & III - RTL/RCF (in-line) - 17-2380 Filter Cartridge Replacement for Rainbow Plastics with Unicel - C-4950
Swimming Pool Filter Cartridge Replacement for Rainbow Plastics Dynamic Series II & III - RTL/RCF (in-line) - 17-2380.
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-4950 |
| Filber # | FC-2390 |
| Pleatco # | PRB50IN |
| Filter Mfg | Rainbow Plastics |
| Filter Model | Dynamic Series II & III - RTL/RCF (in-line) |
| OEM # | 17-2380 |
| Length | 13-5/16" |
| Outside Diameter | 4-15/16" |
| Inside Diameter Top | 2-1/8" / open |
| Inside Diameter Bottom | 2-1/8" / open |
| Pleat Count | 212 |
| Square Feet | 50 |
| Notes | 50 sq.ft. C-4950 is an upgrade to 25 sq.ft. C-4326 and C-4625 cartridges. |
| Price | $35.33 |
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 5:09:56 PM, by BYCAPP