Material: rubber and glass.
Color: transparent.
Diffuser length: 62.8mm/2.47in.
U shape glass tube length: 65.4mm/2.57in.
Diameter of U shape glass and diffuser glass: 2mm/0.07in.
Quantity: 1 set.
Fitment: suitable for Aquarium, Tank.

Feature:
glass, nice-looking and uneasy to break,U-shaped air intake.
valve with stable performance.
counter to bring high counting precision and ultramicropore atomization that helps produce delicate bubbles.
CO2 diffuser, you can effectively build up a more considerate CO2 system.

Note:
provide clear pictures ,measurement where check as much as possible to make sure the item the one that you need.
actual item maybe has slight color distinct with listing image due to different computer screens ,thanks for your understanding.
size of item is manual measurement,please allow 0.5-1inch difference.(1inch=2.54cm).
installation manual .Professional Installation Is Highly Recommended!

Package included:
1 x Co2 diffuser.
1 x Check valve.
1 x U shape glass tube.
2 x Suction cup.
Product Attributes:

Weight (lbs.): 0.07 lb