1/4" AIR X 1/8" NPT STRAIGHT AIR This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. 1/4" AIR X 1/8" NPT STRAIGHT AIR Specifications 1/4" AIR X 1/8" NPT STRAIGHT AIR How To Use Contact your Norchem rep for step-by-step instructions. Tweet