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35 sq.ft. Spa Filter PMAX50P3 5CH-35SAE Unicel
Save on Master Deluxe brand spa filter. This replacement hot tub filter is compatible with Pleatco PMAX50P3 and Unicel 5CH-35SAE hot tub spa filters.
Model M50353S Master Deluxe Filter Cartridge. This is the version with MPT threads at bottom, if you need the one with SEA (male pipe thread) see the 6ch-940
Good price and reasonable shipping time