Low Cost Air Diffuser

Low-Cost Air Diffuser Aeration » Air Diffusers » This glass bead air diffuser is resin-bonded and produces uniform small bubbles. It may be cleaned with acid to extend its life. It is 1/2" diameter by 13/4" long. Has a buterate stem for use with 3/16" tubing. Air flow range is .01 to .06 cfm. A good value in an American-made diffuser.