Fuel Tank Gas Cell 6AN to 10AN Fittings+12" Nylon Braided Return Hose Feed Line Kit (Black) 12" Stainless Steel Braided 6AN Fuel Line / Inner Hose Material: CPE Synthetic Material Tubing Withstands Operating Temperatures from -40 F to +350 F Degrees Fahrenheit Pressure Tolerance: 1500 PSI / Inner Diameter: AN-6 (3/8") / Outer Diameter: AN-9 (9/16") Fitting Adapter Kit are Made of High Quality Lightweight T-6061 Aluminum Material Removable Head for Both Push-On or Twist-Lock Applications