ADA Pollen Glass Beetle CO2 Diffuser 40mm

ADA Pollen Glass Beetle 40 represents the highest quality glass diffuser made! We put this diffuser up next to 3 of the "knock-offs" you can find on-line and there was absolutely no comparison in size of bubble , weight of the glass unit itself, craftsmanship, density of the white diffuser plate, etc.  We have a ADA Pollen Glass Beetle 40 in our 110 ADA planted aquarium at Aquatic Warehouse and people are amazed at how the tiny CO2 bubble will drift about rather than go straight up like the other three we tested.