Waiting for client to arrive! Really burns my soul when someone says I'll be there at nn time and there arent even close. Sitting here playing with computer to pass time and ran across this also saw the flat round airstones and wonder how they would be for a diffuser for powder coating????
http://www.1000bulbs.com/product/95291/GROW-AAPA70L.html
http://www.1000bulbs.com/product/95291/GROW-AAPA70L.html