Compatible with Unicel C-4950, Pleatco, Filbur FC-2390 and more. Universal Compatibility: Replace filters for Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, and Darlly SC706 effortlessly. With NSF/ANSI 50 certification, you can indulge in the refreshing experience of clean water, enhancing your hot tub relaxation sessions.
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