Seachem Spiral Bubble Counting Diffuser

For aquariums up to 75 L-190 L (20-50 US gallons). Large surface area of diffuser disc ideal for high volumes of CO2 gas. Built in bubble counter makes the use of a separate bubble counter unnecessary. Simple and easy to use. Overview:The Seachem Spiral Bubble Counting Diffuser is a pollen style CO2 diffuser that connects to CO2 injection systems to easily disperse CO2 gas into the planted aquarium. The built-in spiral bubble counter allows for easy monitoring of the rate of CO2 injection. The inclusion of a bubble counter in the diffuser makes the use of a bubble counter on the CO2 tank or in-line unnecessary. The Spiral Bubble Counting Diffuser has a 23 mm disc.Compatible with 6 mm (1/4") - Standard Airline Tubing.Suction cup included.Directions:Rinse glassware with warm water. Attach suction cup and desired tubing to the diffuser.To attach tubing to glassware, wet the inside of the tubing with water at the attachment point and carefully slide tubing over glass. The use of other lu