NPT Reducer 1/8" 1/4" 3/8" 1/2" Pipe Thread Adaptor - 1/8" Female to 3/8" Male

Black aluminum adpator fittings for 1/8" NPT female to larger male NPT threads.  Choose the size you need.

Guide for NPT thread O.D.:

1/8" NPT= .370"

1/4" NPT= .550"

3/8" NPT= .665"

1/2" NPT= .825"