This filter media fits the Aqua One AquaStyle 620, AquaStyle 620T and AquaStyle 900.
Aqua One 1C 1W 1S Filter Media
Aqua One 2C 2W 2S Filter Media
Aqua One 47C Carbon Cartribge
Aqua One 48C Carbon Cartridge
Aqua One 4C 4W 4S Filter Media