NPT Brass Reducer Male 3/8"NPT to 1/4" NPT Fem Pneumatic Adapter,oil,water
3/8"NPT Male to 1/4 NPT Female Air. for the reducing of threads from 3/8 NPT TO 1/4 NPT. npt THREAD DATA. Nipple taper Reducing Bush. this is made of brass. can be used on Pneumatics, Water, oil etc.