Replacement filter cartridge for spas and pools.

Measures approximately 5 inch diameter by 13.3125 inches in length.

Check original part number and filter size for compatibility. Replaces Unicel part number C-4950. Replaces Filbur part number FC-2390.

Original Pleatco part number PRB50-IN, Manufactured by Pleatco

Pools and spas using water filter cartridge part number PRB50-IN: Cal Spas original part number 17-2380; Coast Spas original part number 817-500; Custom Molded Products original part number 25391; Leisure Bay and Rec Warehouse original part number 817-5000; Maxx Spas original part number 17-2380; Morgan Spas original part number 17-2380; Rainbow Plastics original part number 17-2380; Viking Spas original part number 17-2380; Vita Spas (DM Industries) original part number 212320; Waterway Plastics original part number 817-5000.