3M™ Air Supply Tube, 308-00-40P is our light duty, 7.5 m coiled tube with a 3/8" male pipe thread BSP at each end.Connect your 3M™ Supplied Air Regulator to your facility’s compressed air system with 3M™ Air Supply Tube, 308-00-40P.Our light duty, 7.5 m coiled tube has a 3/8" male pipe thread BSP at each end to allow flexibility in the choice of 3M™ cou