Air Pumps, Air Stones & Air Hose

12" x 1-1/2" Square Airstone Item Code: SWAS1250 Unlike the standard silica airstones these airstones can be cleaned time and time again without wearing down. These airstone break air up into small air bubbles to increase the surface area between water and air to increase oxygen transfer rates. Small air bubbles enable the bubble column to move more water with it and allow for higher circulation of your water pond. Includes 1/2" male thread rated for air flow up to 1 cubic foot per minute - 26 liters per minute Quantity :  $CAD 49.99