Estone New Mini Sucker CO2 System Bubble Counter Diffuser Plant Aquarium Tank

100% brand new and high quality Material:ABS Color: As the picture show you Small and easy to use, it can accurately measure your C02 flow rate Inlet has built-in check valve to prevent water flow backward It should be used with the diffuser and check valve Ideal for Aquarium CO2 system Fit for all kinds of aquarium Size:approx.6.7cmx3.5cmx3.5cm/2.63''x1.37''x1.37'' Quantity:1 pc Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item, Thank you! Package includes: CO2 Bubble Counter x 1