PJ50-4 filter

Dimensions
Diameter: 254 mm
Length: 254 mm
Top: 150 mm (6") hole
Bottom: 150 mm (6") hole

Filter manufacturers who use this cartridge
Jacuzzi Brothers

Part numbers
Pleatco: PJ50-4
Unicel: C-9650
Filbur: FC-1460
Jacuzzi: CFR-50