These are pete port needle and pressure gauge test / fill tools from Schmidty Racing Suspensons and are used to check pressure and or refill / charge the fluid on geothermal loops and ground source heat pump systems. On either size, the port needles are 1-3/8" long from the face of the brass coupler. Each tool has a removable, threaded, aluminum sleeve to protect and keep the needle from damage when the tool is not being used.
We offer tools in three (3) configurations of either a 1/16" or 1/8" size port needle. We also offer individual 1/16" and 1/8" replacement pete port needles. All tools (except individual needles) come with a glycerin filled gauge with 2" face and polished stainless gauge body.