A number of packages arrived today, all at the same time. ( like Christmas ). I ordered five connectors for the "Safeair" pitot static system, 1/8' NPT to 1/4" tubing The GSU25 has three connectors and the G5 has two connectors for the pitot static system. I have many connectors which came with the "safeair" system, which will make life much easier connecting everything.