Aquarium co2 regulator or Carbon Dioxide Reactor Kit with low power solenoid valve

------Low power solenoid valve;Bubble counter with built-in check valve; ------Precise needle valve.Adjustable precision can reach the level to count the number of the bubble.360° rotatable fine adjustment needle valve with high  precision; ------Creative design and compact structure recommended for aquarium,hydroponic gardening etc. ------ Suitable to various Co2 tanks or N2 cylinder (covers UK,Europe,Australia and Asia)with only need of replacement or addition of the inlet adapters easily. ------Elastomer inlet sealing material make sure the gas cylinder get sealed and opened more effectively and safely as being screwed into the regulator inlet port.Internal PTFE and stainless steel sealing provide superior durability. ------3 Watt solenoid temperature rise no more than 65℃.