View this page in full at: https://greyhound.glownet.uk/supplies-and-accessories-gas-regulators?specs=f_gas+purity:4.6+purity+(99.995%25)!!0!!||f_inlet%2fcylinder+connection:bs341+no.+3+(rh+int)+side+entry!!0!!||f_gas+controlled:air,+argon,+helium,+nitrogen,+oxygen!!0!!