Jacuzzi Proclear 6000-383 Filter, 60 Sq Ft, J-300 Series (2002+) Diameter: 6 3/4" Length: 15 1/2" Bottom: 2" SAE thread Genuine Jacuzzi Parts Twist off cap accommodaes PROCLEAR Mineral Spa Sanitizer Filtration Area: 60 ft2 Cartridge lasts up to 18 months