The Aqua Flo RF-20BV is a water filter cartridge that fits the following water filtration systems:
The Aqua-Flo Radial Flow Carbon Cartridge 20"x 4.5" is a granular activated carbon (GAC) filter. This carbon filter cartridge is a radial flow carbon filter. This AquaFlo filter measures 4.5 inches x 20 inches.
The Aqua Flo RF-20BV specifications: