Our Fuel tube is the industry standard for GS models.Specifically designed to handle most fuels and industrial lubricants, our fuel and lubricant tubing resists the swelling and hardening caused by hydrocarbon-based fluids. This significantly reduces the risk of failure due to cracking and leakage. Its minimum extractability safeguards liquid vapor being transferred against adulteration.Specifications Resists Embrittlement Compatible With Most Hydrocarbons Resistant to Swelling Highly Flexible, Easy to Install Specifically Developed for Fuels and Lubricants Ozone and UV Light Resistant Gas tank is NOT included, for display purposes only.