The fine adjusting valve is used for adjust the amount of carbon dioxide finely, this valve with high adjustment fineness, there is no air leakage under the high pressure system. Single head and double head optional, keeping your aquatic plants healthy, more convenient and save energy. Features: DURABLE AND EASY TO INSTALL: Be made of aluminum alloy and copper material, strong and sturdy. Also, easy to install and disassemble. FINE-TUNING THE VOLUME OF CO2: With precise structure, to release CO2 by fine tuning, so that better supply suitable CO2 for water plants. 2 TYPE OPTIONAL: Single head fine adjusting valve one end fits for G1/8 interface, the other end connect to the 64mm(inner diameter 4mm,outer diameter 6mm) air pipe, the nut is for fixing the air pipe prevent the air pipe from collapsing; Double head fine adjusting valve 2 end fit for the 46mm pipe (inner diameter 4mm and outer diameter 6mm), the nuts are for fixing the air pipe prevent the air pipe from collapsing. FINE
