The Aries AF-20-4000 fits the following water filter housings:
The Aries AF-20-4000 20" Arsenic GAC Filter is a replacement water filter that fits 20" standard water filter housings. This granular activated carbon, or GAC filter, reduces arsenic, chlorine, and several other harmful contaminants from you drinking water. With this drinking water filter you will notice an improvement in taste and clarity. The Aries AF-20-4000 includes one replacement water filter cartridge.
Aries AF-20-4000 20" Arsenic Reduction GAC Filter specifications: