Carbon dioxide bubble counter with check valve (single head + double head silver)

The bubble counter with check valve can prevent backflow when pressure changes, which may damage the water pressure gauge and CO2 bottle. Is for installing and using, a good choice to make your aquarium different. It can count the volume of carbon dioxide and provide factories with enough carbon dioxide. Features: VISIBLE CO2 OUTPUT: Carbon dioxide output is clearly visible, better providing sufficient CO2 to aquatic plants. SUITABLE FOR: The G1/8 interface trim valve is suitable for single head solenoid valve. If it is not G1/8 interface, suitable for 4*6mm air pipe (inner diameter 4mm and outer diameter 6mm). DURABLE AND EASY TO INSTALL: be made of aluminum alloy, strong and sturdy. Also, easy to install and disassemble. INSTRUCTION: CO2 source - compensation valve - solenoid valve - air tube bubbler - bubble diffuser - fish tank, pay attention to the direction of CO2 flow when installing. WITH CHECK VALVE: With anti-return function to prevent backflow when pressure changes, which can protect the water pressure gauge and CO2 bottle. Specification: Name: Bubble counter with check valve Color: silver + transparent Main material: aluminum alloy + acrylic Optional type: Single head / double head Single head: can connect to trim valve, G1/8 interface only Double head: connected to 6*4mm air pipe (inner diameter 4mm, outer diameter 6mm) Size: Single head: 20*80mm Double head: 20*89mm Note: In the lush water tank, It is recommended to play 2-3 CO2 bubbles in 1 second. Package Information: Package size: 10*2.5*2.5cm Package weight: 30g Plastic packaging