**THIS IS A PRE-ORDER PRODUCT. IT WILL NOT BE IN STOCK UNTIL APPROXIMATELY EARLY NOVEMBER 2014
This is the version for AIR diffusion (not CO2)
It is a basic model of diffuser designed for 60cm size aquarium. It disperses CO2 in fine bubbles and diffuses it efficiently into the water. The original model of Pollen Glass is simple design and does not disturb aquascape.