This replacement hot tub filter is compatible with Sundance part number 6540-486, Filbur part number FC-0151, Unicel part number 4CH-50 and Pleatco part number PTL50. These filters are also constructed with thermally bonded polyurethane caps and a punched PVC pipe core that will ensure consistent water flow through your filters along with the durability you depend on.
Fits spas from the following manufacturers:Addison Spas, Advanced Spa Design, American Classic Spas, Aqua Leisure, Aqua Tech Spas, Dimension One Spas, Dynasty Spas, Florida Whirlpool, Great Northern Engineering, LA Spas, Nemco, Opu Spas, Sundance (6540-486) and Spillways











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