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 The 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 30 mm disc. Compatible with 6 mm (1/4") - Standard Airline Tubing. Suction cup included. NOTICE All glass items must be checked immediately on arrival and reported to ourselves, please see delivery policy or returns and refunds policy.
