Large-Capacity Filter for Spas: Designed for select larger Spa models using a 21-5/16" long filter—be sure to confirm measurements for a proper fit and peak performance.
Precise Measurements: Features a 5-5/16" diameter, 21-5/16" length, and 2-1/8" open top and bottom—engineered for systems requiring high flow and surface area.
Compatible with Leading Brands: Direct replacement for Filbur FC-2976, Pleatco PCST120, and UNICEL: C-5351
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