Tier1 Replacement for Pentair Rainbow 25 Pool Filter Cartridge – 2 Pack | Compatible with Unicel C-4326, Pleatco PRB25-IN, FC-2375 | 13-5/16" x 4-15/16" | Trilobal Fabric | Washable Pool Cartridge

Tier1 Replacement for Pentair Rainbow 25 Pool Filter Cartridge – 2 Pack | Compatible with Unicel C-4326, Pleatco PRB25-IN, FC-2375 | 13-5/16" x 4-15/16" | Trilobal Fabric | Washable Pool Cartridge

• COMPATIBLE MODELS – Replacement for Dynamic 17-2327, Pleatco PRB25-IN, 817-2500, R173429, Unicel C-4326, Filbur FC-2375, RDC-25, SD-00196, 303909, M-4326, 8172500, R173429 filtration cartridges.
• DIMENSIONS FOR RELIABLE FIT – This 13-5/16" x 4-15/16" cartridge is engineered to fit seamlessly into compatible pool filtration systems, supporting consistent performance without leaks or gaps.
• TRILOBAL DIRT-LOCK MEDIA – Advanced trilobal fibers capture up to 40% more debris than standard round fibers, trapping dirt, hair, leaves, and fine particles while maintaining maximum water flow.
• TESTED TO NSF 50 STANDARDS – Independently tested to NSF protocols for performance and durability, supporting consistent water clarity and reliable filtration.
• ENGINEERED FOR CONSISTENT FLOW – Internal high-flow core delivers steady water circulation, protecting pump performance without restricting pressure or causing heater issues like some filters.