water filter
A tall, cylindrical ceramic container that removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process.
LifeSaver bottle
portable water purification device
Lava filter
biological filter that uses lavastone pebbles on which microorganisms (periphyton) grow in a thin biofilm, which break down odor components in the air (e.g. hydrogen sulfide)
screen filter
type of water filter using a rigid or flexible screen to separate sand and other fine particles out of water for irrigation or industrial applications
aquarium filter
maintenance systems for aquaria