Package included :
1 x Co2 diffuser
1 x check valve
1 x U shape glass tube
2 x suction cup
1.Solid glass, nice-looking and uneasy to break, U-shaped air intake
2.Check valve with stable performance.
3.Bubble counter to bring high counting precision and ultra micropore atomization that helps produce delicate bubbles.
4.With a CO2 diffuser, you can effectively build up a more considerate CO2 system.