Features: 1.NANOTECHNOLOGY: Aquarium bubble counter aade with excellent nano technology for good grinding results. Good air output and high dissolution rate. 2.ACRYLIC MATERIAL: The main body of the fish tank air refiner is made of imported premium acrylic, which is crystal clear, acid and alkali resistant, corrosion resistant, not easy to break and durable. 3.COUNTING FUNCTION: The fish tank air refiner also has an independent bubble counting function, which is perfectly combined with refining. The low pressure required for red refining makes it particularly easy to vent and saves material. 4.EASY TO INSTALL: The aquarium bubble counter with suction cups is easy to install and operate and can be firmly fixed to the aquarium. You can also easily adjust the position. 5.EXQUISITE CRAFTSMANSHIP: The fish tank bubbler has a superbly crafted, glossy finish and provides an aesthetically pleasing appearance to the aquarium. The fine see through glass blends into the aquarium environment, creating a harmonious and unified feel. Specification: Item Type: Aquarium Bubble Counter Material: Acrylic PackageList: 2 x Aquarium Bubble Counter Fitting 1 xSuctionCup Note Please allow for some errors in manual measurements.