Filbur FC-3920 Pool & Spa Filter Cartridge - 31250, C-6433, PWK35
Home / Filbur FC-3920 Pool & Spa Filter Cartridge - 31250, C-6433, PWK35
Filbur FC-3920 Pool & Spa Filter Cartridge - 31250, C-6433, PWK35
• Weight: 3 oz.
• Area: 33 sq. ft.
• Area: 33 sq. ft.
• Width: 6”
• Length: 9”
• Part Number: FC-3920
• Bottom Style: 1.9375”
• Top Style: 1.9375”
Constructed optimally for performance, the Filbur FC-3920 Pool & Spa Filter Cartridge can effectively replace the following swimming pool and spa cartridges: Watkins 30, Hot Springs Spas 31250, Unicel C-6433, and Pleatco PWK35. This 33 sq. ft. cartridge is designed to obliterate bacterial and fungal populations, which are often to blame for compromised cartridge functionality and structure. Any device immersed in water is susceptible to this phenomenon, hence the introduction of antimicrobial end caps to this pool filter cartridge. There are three primary features that permit this swimming pool filter’s ability to resist damage and breakage: the polyester interior with threaded inner components, the pleated Reemay filter media, and the PVC center core. Each of these structures works independently and is partly responsible for the extended lifespan of such pool filter cartridges.
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