Popular Universal Fit: One of the most widely used hot tub filter sizes—measuring 13-5/16" long by 4-15/16" in diameter with 2-1/8" open top and bottom—fits a broad range of spa brands and models.
Compatible with Major Brands: Direct replacement for Pleatco PRB50-IN, Filbur FC-2390, and Unicel C-4950.
Efficient Dirt-Trapping Design: Engineered pleat structure delivers optimal debris capture and high flow for improved spa circulation and filtration.
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