We call this a Gauge Port T. Essentially it is NW40 x NW40 flange with enough metal in between the (2) flange surfaces that can be then be machined to create a "Tee" style fitting. We can machine in a 1/8" FNPT port (standard) which is used often by higher end vacuum gauges. We can also create a 1/4" or 3/8" FNPT hole in this part. This will be acceptable for most 0-30" Hg and thermocouple electronic vacuum gauges or for other demands. We can actually change this slightly and modify this part to accept a 1/2" FNPT port. We can also offer this in 6061 Aluminum or other materials.
100% Warranteed from defects in materials and workmanship.
