High quality materials: This product is made of high quality aluminum alloy and acrylic, so it is durable and has a long service life. It is also not harmful to fish and algae in your aquarium. Simple use: This product has a transparent design, so you can clearly see the air bubbles inside. If there are a lot of bubbles, it means there is a lot of carbon dioxide in the water. With our meter, you can easily judge the concentration of carbon dioxide. Easy to install: All you have to do is fill the bubble counter with four-fifths of water, connect it to a conduit and attach it to the aquarium wall. Anti-reflux: With non-return function to prevent backflow when pressure changes. Size: Approximately 80*20mm Colour: silver Quantity delivered: 1 piece
