Tier1 Replacement for Pentair Pool Filter Cartridge PRB50-IN – 4 Pack | Compatible with R173434, Unicel C-4950, Pleatco PRB50-IN, FC-2390 | 13-5/16" x 4-15/16" | Trilobal Fabric | Washable Cartridge

COMPATIBLE MODELS – Replacement for Dynamic 03FIL1600, Pleatco PRB50-IN, Filbur FC-2390, Unicel C-4950, Jacuzzi J210/J220/J235/J245/J275, Aladdin 15002, 25391, Guardian 413-212-02, 817-5000, 435-0037, R173434, 06-0012-12, PLE-051-0088, PLE-051-9180, 6540-471, 373045, 17-2380, PLFPRB50-IN, SD-00201, SD-00455 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.

Q: Will this filter fit my system? A: Yes, it’s designed as a direct replacement for 03FIL1600, PRB50-IN, FC-2390. Q: How does trilobal media improve filtration? A: Its unique fibers capture more fine debris than standard media, helping keep water visibly cleaner. Q: Can the filter be reused? A: Yes, the pleated design withstands multiple cleanings with a garden hose. Q: How long does it last? A: Each cartridge provides dependable filtration for up to 3 months under normal conditions. Q: Why replace even if it looks clean? A: Over time, microscopic oils and debris embed deep in the fibers, reducing efficiency and water flow.