A piece of lime-wood or porous stone, whose purpose is to gradually diffuse air into a water tank, eliminating the noise and large bubbles of conventional air filtration systems.
SIUE STEM Resource Center
https://stemcenter.siue.edu
Southern Illinois University Edwardsvillehttps://stemcenter.siue.edu
Science East, Room 1276
Edwardsville, IL, 62026
USA
618-650-3065