1.3 L Aquarium Co2 System Generator With Regulator Solenoid Valve For, G600Smini ?SUS 304 Stainlees Steel Material ?The Cylinder, Filter Element and the Neddle valve., etc are all using real SUS 304, Durable and long lasting. ?mini Body?Designed for small tank. Does not take up too much space! Quick plug design, makes the filling of ingredients SO convenient! ?Accessories?Acrylic co2 diffuser(the disk can be replaced and the refining effect is much better than glass one); Check valve(prevent thetank water backflow) ?SUS 304 Filter Element?Minimize the failure of solenoid valve ?Low Temperature Silent Solenoid Valve?12V DC, working temperature is lower than body temperature, no sound and no noise!