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Hot Springs / Tiger River 65 Sq Ft Spa Filter Cartridge FC-3960

Availability: In Stock

Regular Price: $54.99

Sale Price $43.99

You Save: $11.00  (20%)

Quick Overview

The Watkins 65 Sq Ft replacement filter cartridge replaces Hot Springs / Tiger River 31114 Filter Cartridges and is identical to Filbur part number FC-3960, Unicel part number C-8465 and Pleatco part number PWK65.

This 65 sq ft cartridge is 10-1/2 inch in length by 8-1/2 inch in diameter and has a 3 inch top opening and 3 inch bottom opening. This cartridge is designed for spas and hot tubs manufactured by Watkins and Hot Springs.


Pleatco filter cartridges are made from Reemay spun-bound polyester pleated filter media and include thermally bonded polyurethane caps with punched PVC pipe cores to ensure durability and a consistent flow. They feature Anti-Microbial technology preventing microbes such as mold, fungi, bacteria, and mildew from growing.

  • Replaces Watkins, Hot Springs, Tiger River part numbers 31114, 71827
  • Length: 10-1/2"
  • Diameter: 8-1/2"
  • Top: 3" Opening
  • Bottom: 3" Opening
  • Square Feet: 65
  • Filbur part number FC-3960
  • Unicel part number C-8465
  • Pleatco part number PWK65
  • Cross Reference: UNIC8465, 46203645544039606
  • This is not an original Watkins cartridge

Fits the following Watkins spa models:
Hot Springs (Watkins), Tiger River (Watkins), Grandee (Watkins), Classic (Watkins), Sovereign (Watkins), Hot Spot Spas La Palma (2008, 2009), Hot Spot Spas Relay (2010, 2011, 2012), Hot Spot Spas Tempo (2010, 2011, 2012), Hot Spot Spas Rhythm (2011, 2012)


To clean your filter cartridge remember these 4 simple steps; rinse, soak, rinse, dry. Rinse your filter out with a garden hose to remove any debris or dirt still attached to your filter. Next, soak your filter in a filter cleaner solution overnight, then remove your filter from the solution and rinse with a garden hose. Set your filter in a sunny location and let it air dry completely. Finally, reinstall your pool filter per your manufacturer’s instructions.

Additional Information
Delivery Time 2-5 Business Days
Manufacturer Pleatco
Technical Specs

Length: 10-1/2"
Diameter: 8-1/2"
Top: 3" Opening
Bottom: 3" Opening
Square Feet: 65

SKU PLE-051-9188
Manufacturer Part # 31114
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