The Aqua Flo CB-0.5-10BV cartridge fits in the following filter housings:
The Aqua-Flo 0.5 Micron Carbon Block Filter 10"x 4.5" is a drop-in filter with carbon block media. This carbon block filter is equipped with a 0.5 micron rating that helps reduce chlorine taste & odor, as well as fine particles, in your drinking water. This 0.5 micron filter measures 10 inches in length and 2.5 inches in diameter. With this 10" filter you will be able to increase the clarity of your water and improve taste.
Aqua-Flo 0.5 Micron Carbon Block Filter 10"x 4.5" specifications: