Description:<br>CO2 Regulator Pressure Reducing Valve With Dual Pressure Gauges And Bubble Counter For Planted Aquarium<br> Features:  <br> Innovative design provides extreme accuracy， dependability， and extended service life.<br> Dual pressure gauges indicating cylinder pressure and output working pressure.<br> Designed to attach to cylinders with horizontal valves.<br> No tools required in fastening the CO2 cylinder.<br> Withstand high pressure without breaking.<br> Bubble counter included.<br> Working in silent.<br> Easy assembly.<br> Recommended for planted aquarium.<br> Connector size 0.865&amp;quot;， fit for UK， EUR and Australian standard CO2 cylinder ( not for USA standard CGA320).<br>  <br> Package Included:  <br> 1 x CO2 Pressure Regulator<br> 1 x Spanner<br> 1 x Bubble Counter<br> 2 x Gaskets<br> 1 x Storage Box  Details pictures: