PC-IG Series is a reducing and equal bulkhead made of Black and White Nylon and Gray Polypropylene. Barb sizes are 1/16", 1/8", and 0.170" ID tubing. In addition, the external threads for panel mounting are 1/4-28" and a nut is supplied. The maximum supply pressure is 125 psi and the working temperature ranges are -50º F to 180º F for Nylon and -40º F to 200º F for Polypropylene.