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Unicel® C-5351 Filter

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Unicel® C-5351 Hot Tub Filter

C-5351 Filter Cartridge Features:

  • 120 sq. Ft.
  • Diameter 5-5/16" (137 mm)
  • Length: 30-1/8" (765 mm)
  • Top end cap: 2-1/8" open (54 mm)
  • Bottom end cap: 2-1/8" open ( 54 mm)
  • Replacement for Pleatco PCST120, Filbur FC-2976


Maintain sparkling clean and beautifully clear water with the Unicel replacement filter. Made with spunbonded, 100% polyester material, this Unicel filter is durable and effective in capturing the smallest of debris. With replacement cartridges available in a variety of sizes and built to OEM specifications, you’re sure to get a reliable cartridge that fits your filter perfectly. Use this replacement filter to replace your worn or damaged cartridge or as a back up to maximize the time between filter changes. 

Manufacture (OEM)

Coast Spas Top Load 135, Waterway Plastics