Connect your 3M™ Supplied Air Regulator to your facility’s compressed air system with 3M™ Air Supply Tube, 308-00-30P.Our standard duty, green 10 m tube has a 3/8" male pipe thread BSP at each end to allow flexibility in the choice of 3M™ coupling systems when connecting 3M™ Supplied Air Regulators to your facility’s compressed air system. These air supply tubes offer a high-quality connection to all components and are CE approved.