Description:Co2 Regulator Magnetic Solenoid Two Gauge Bubble Counter Planted Aquarium<br>Introduction:Designed with decompress pressure gate， easily to adjust， stable and accurate CO2 output.Magnetic valve to control on\/off the CO2 cylinderOperated with timer for better control the level of CO2Working in silentRecommended for planted aquariumconnector size 0.865&amp;quot;， fit for UK， EUR and Australian standard CO2 cylinder ( not for USA standard CGA320)Working for UK and European voltage 220V~240V， we will ship it with plug adapter for UK and EU customer， free of charge<br>Package included:1x CO2 regulator with magnetic solenoid valve plus bubble counter