The SMARTFLEX complete multilayer piping system for the transfer of automotive and aviation fuels, biofuels and hazardous fluids was installed in Indiana. SMARTFLEX has a vast range of pipes and fittings. All products are available in a wide variety of sizes and configurations making the system suitable to various kinds of installation. The key material employed in the production of SMARTFLEX is high-density polyethylene, a material with high durability and working benefits to the user. Moreover, HDPE can be a more cost-effective solution than more traditional materials such as metal. All SMARTFLEX primary piping consists of a multi-layer composite wall lined product pipe that combines the excellent mechanical properties of HDPE with the low permeability and high resistance to hydro-carbons of a new class of polymers used in the lining material and creates a level of hydro-carbon compatibility unattainable by other fuel pipes available on the market today.