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RD50 Magnum Spa Filter Cartridge
Diameter - 125mm
Length - 338mm
Top - Open (54mm Hole)
Bottom - Open (54mm Hole)
Replaces - Pleatco: PRB50-IN, Unicel: C-4950, Filbur: FC-2390, OEM: 302005, 73533, 76076, 17-2380 & 6540-471 & other brands: SC706 & 40506