Filbur

FC-2390-F

Used for Rainbow/Pentair Dynamic 50

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Product Description

Keep your spa or hot tub water sparkling clean with the Filbur FC-2390-F Replacement Filter Cartridge (UPC: 645544023902). This high-performance 50 sq. ft. cartridge is a premium replacement for the widely used Rainbow Dynamic 50, Pentair R172380, and Unicel C-4950 series. Designed with Reemay® spunbond polyester filtration media, the FC-2390-F offers superior dirt-holding capacity and durability for both residential and commercial applications.

Key Features & Benefits:

Precision OEM Fit: Engineered to match the exact specifications of major spa manufacturers, ensuring a perfect seal and optimal hydraulic flow.

Advanced Filtration Fabric: Utilizes high-quality, 3 oz. polyester media with sharp, deep pleat folds to maximize surface area and capture fine debris, oils, and contaminants.

Structural Integrity: Built with a reinforced PVC center core to prevent collapse under high-pressure conditions and provide consistent water distribution.

Antimicrobial End Caps: Features high-impact, reinforced end caps that resist chemical degradation and inhibit the growth of odor-causing bacteria and mold.

Easy Maintenance: Designed to be washable and reusable, reducing the frequency of replacements and overall maintenance costs.

Specifications:

Outside Diameter: 4-15/16"

Length: 13-5/16"

Top Style: 2-1/8" Open

Bottom Style: 2-1/8" Open

Filtration Area: 50 sq. ft.

Media Weight: 3 oz.

Compatibility Cross-Reference:

Unicel: C-4950, C-4950RA

Pleatco: PRB50-IN, PRB50-IN-M

Pentair / Rainbow: R172380, 17-2380, 817-5000 (Waterway Plastics), Dynamic 50

Aladdin: 15002

Excel Filters: XLS-408

Jacuzzi: 373045

Specifications

Specifications

Product Type Replacement Pool & Spa Filter Cartridge (Antimicrobial)
Compatibility (Systems) Rainbow/Pentair Dynamic 50, Waterway, CMP, Cal Spas, Jacuzzi J200 Series
Material(s) Genuine Reemay™ Spunbond Polyester, Reinforced PVC Center Core, Antimicrobial End Caps
Filtration Area 50 Sq. Ft.
Dimensions Outside Diameter: 4-15/16" (5"); Length: 13-5/16"
End Cap Style 2-1/8" Open Top / 2-1/8" Open Bottom
GTIN / UPC 645544023902

Substitute Part Numbers

The FC-2390-F can be substituted with the following cross-reference part numbers:

  • Unicel: C-4950, C-4950AM
  • Pleatco: PRB50-IN, PRB50-IN-M
  • Pentair (OEM): 17-2380, R173434
  • Jacuzzi (OEM): 373045
  • Aladdin: 15002
  • Baleen: AK-3049
  • SpiroPure: SP-PS-2390M
  • Waterway: 817-5000

Warnings and Disclaimers

  • Pressure Hazard: Always turn off the spa pump and bleed air pressure before servicing the filter housing to prevent injury.
  • Chemical Warning: Do not place sanitizing tablets directly into the filter core; concentrated chemicals will degrade the [reinforced PVC center core](
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