Description
Overview
Premium replacement spa filter cartridge. Drop-in compatible – no modifications needed. Designed for easy installation and reliable filtration performance.
Specifications
| Type | Spa |
Compatibility
This spa filter cartridge is a direct replacement for the following models:
| OEM (Pleatco) | 17-2327,100586,33521,25392,303909,M-4326,817-2500,R173429 |
| Pleatco | PRB25-IN |
| Unicel | C-4326 |
| Filbur | FC-2375 |
| Also Replaces | Rainbow Dynamic 25, PC-2375 |
What’s Included
Your order includes the selected quantity of replacement spa filter cartridges. Each unit is individually inspected for quality before shipping.
Frequently Asked Questions
How often should I replace my spa filter cartridge?
We recommend replacing your filter cartridge every 12 months, or sooner if you notice reduced water flow or increased filter pressure (8-10 PSI above clean baseline).
Is this compatible with my system?
Check the compatibility table above. If your current filter’s part number matches any listed model, this is a direct drop-in replacement.
