Features:
1.High Quality: Made of high-quality materials such as aluminum alloy and acrylic, it is reliable and long-lasting.
2.Special Design: A check prevents water from your aquarium from siphoning back into fragile. Equipped with a water injection hole, it quickly solves the problem of water replenishment. Water can be added without disassembly.
3.Easy to install: Single head model, connect a end to the CO2 regulating valve fine-tuning valve/solenoid valve system, and the other end to the CO2 gas pipe, paying attention to the gas flow direction.
4.Easy to Observe: With the integrated injection molding high transparency acrylic tube window, you could monitor the outflow of carbon dioxide,which helps to keep and maintain a healthy aquarium.

Specification:
Material: Aluminum alloy+acrylic
Specification: Single ended air duct
Size: Diameter 2.2cm/0.9 ", length 9.8cm/3.9"
Weight: 40g

Packing List:
1PC X CO2 Bubble Counter

Note:

1.Please allow 1-2cm measuring deviation due to manual measurement.

2.Due to the different monitor and light effect, the actual color of the item might be slight different from the color shown on the pictures. Please Understand, Thanks!