Aquarium CO2 Bubble Counter Mini Aluminum Alloy Counter with Check for
Features: Small and compact.
A non-return function to prevent the backflow when the pressure changes.
for Most Co2 Setups: The aluminum alloy bubble counter works great with any diffuser and CO2 pump sets you might already have at home.
Easy Installation: Convenient, easy for you to take care of your aquarium
Durable: sturdy quality aluminum alloy, this bubble counter is built for to last and deliver. It's no-leak property ensures that no C02 escapes until you choose to unscrew it and refill with water.

Specifications: Material: Aluminum Alloy+ Acrylic
Color: Silver
Size: (LxW)
8x1.5cm/3.15"x0.59" (Single-Head)
8.34x1.4cm/3.31"x0.55" for Head)

Package Includes: 1 x Aquarium CO2 Bubble Counter

note: 1.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!