6. What types of fittings to use for gas connection with the Sensys Evo? Palamara Jerome July 31, 2018 14:46 Updated Follow Inlets and outlets on the rear of the unit are equipped with 1/8 "Swagelock fittings. Related articles 6. What types of fittings used for the connection of the gas with the Labsys EVO? Comments 0 comments Please sign in to leave a comment.