This high-quality compatible spa and pool filter cartridge replaces Pleatco PCST80, Unicel C-5396, and Filbur FC-2975 models. It delivers powerful filtration performance by capturing dirt, debris, and fine particles — keeping your spa water crystal clear and safe for everyday use.

Specifications:

• Replaces: Pleatco PCST80, Unicel C-5396, Filbur FC-2975
• For hot tubs and spas
• Diameter: 5 3/8"
• Length: 21 5/16"
• Top and bottom: 2 1/8"
• Part no. PCST80

This is not an original Pleatco® product. All brand names and model numbers are used solely for cross-reference and compatibility purposes.

Returns & installation: Confirm your spa's filter housing dimensions before ordering, as filter cartridges are non-returnable once installed. Installation is a simple hand-tightened swap — no tools required.

FAQ

Q: How often should I replace this filter?
A: Most spa owners replace pleated cartridge filters every 12–18 months, or sooner with heavy use or visible wear.

Q: Is this a genuine Pleatco filter?
A: No — this is a high-quality compatible cartridge cross-referenced to Pleatco, Unicel, and Filbur part numbers for fit and performance.