Pleatco PRB50-IN Replacement Cartridge Filter Element – 50 Sq Ft for Pentair Dynamic Series
Replacement Filter Cartridges
Pleatco Replacement Cartridge Filter Element
High-performance 50 sq ft replacement filter cartridge designed to deliver clean, clear water while maintaining efficient circulation in compatible Pentair Dynamic Series and other filtration systems.
Warranty Information
30-Day Manufacturer Warranty
Ultimate Pools is your first point of contact for compatibility verification, installation guidance, and warranty support.
The Pleatco Replacement Cartridge Filter (PRB50-IN) is a premium replacement filter element designed to capture dirt, debris, and fine particles while maintaining optimal water flow. Its advanced pleated filtration media helps keep pool and spa water crystal clear while supporting efficient system operation.
Featuring Pleatco's free-flow core technology, this cartridge promotes improved circulation and reduced system strain compared to restrictive filter designs. The washable cartridge design eliminates the need for backwashing, helping conserve water and reduce chemical loss during routine maintenance.
Key Features
Efficiently captures dirt, debris, and fine particles for cleaner water.
Maximizes circulation while reducing pressure loss and system strain.
Saves water and minimizes chemical loss during maintenance.
Built for reliable filtration performance and long service life.
Rinses clean with a standard garden hose for simple maintenance.
Replaces Pentair OEM cartridge R173434 in compatible systems.
Compatibility
Compatible with select filtration systems including:
- Pentair Dynamic Series IV (DFM, DFML)
- Pentair Dynamic Series II & III RTL/RCF-50
- Pentair Dynamic Series I RDC-50
- Pentair RDC-50S
- Select Waterway filtration systems
- Select Custom Molded Products filtration systems
- OEM replacement for Pentair R173434
Compatibility may vary by production year, filter model, and housing configuration. Verify your exact filter model, cartridge dimensions, and OEM part number before ordering to avoid fitment issues or unnecessary returns.
Specifications
| SKU | PRB50-IN |
| Brand | Pleatco |
| Filtration Area | 50 Sq Ft |
| Diameter | 5 Inches |
| Length | 13-5/16 Inches |
| Top Opening | 2-1/8 Inches Open |
| Bottom Opening | 2-1/8 Inches Open |
| OEM Cross Reference | Pentair R173434 |
| Core Design | Pleatco Free-Flow Core |
| Warranty | 30-Day Manufacturer Warranty |
Frequently Asked Questions
This cartridge replaces Pentair OEM filter cartridge R173434 and fits compatible Dynamic Series filter models listed above.
Remove the cartridge and rinse thoroughly with a garden hose to remove accumulated debris. For a deep clean, you can use the Summer Smiles Klean Filter.
Compare your existing cartridge dimensions, filtration area, end cap style, and OEM part number before ordering.
Cleaning frequency depends on pool usage and water conditions. Most cartridge elements are replaced when cleaning no longer restores normal filtration performance.
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