Pssopp Aquarium CO2 Regulator Adapter Fish Tank Cylinder Connector Converter Equipment Tool with Gasket(G5/8 to W21.8)

【High Quality】Our aquarium connector adapter is made of metal material, construction that is corrosion resistant and the is smooth and shiny. 【Better Sealing Property】The inner has a gasket with high elasticity for better sealing property. Brand new and high quality, it is enough for long time use. 【Maintain Ideal CO2 Levels】It can be used for CO2 regulator at the aquarium, will allow you to maintain ideal CO2 levels for optimum growth. 【Easy to Install】Our aquarium connector adapter is easy to install, no high installation skill required. 【2 Sizes for Choosing】#1: Internal Thread G5/8 to External Thread W21.8. #2: Internal Thread W21.8 to External Thread G5/8.