Aquarium CO2 Diffuser for 60~300L Plants Tank Atomizer Solenoid Regulator Moss CO2 Atomizer

Specification: Diameter: 3cm /1.2 inch Length: 8.7 cm/ 3.4inch Material: Glass ? Features: a High efficiency of diffusing carbon dioxide b CO2 bubble counter is built in this device c Easy to install and use, with no extra power required d Suitable for tanks 15 - 80 gal (60L - 300L) ? Package included: 1x CO2 Diffuser ?