Georg Fischer Central Plastics offers a variety of riser options for residential and commercial applications, including custom manufacturing to specific requirements. Our risers offer a safe and simple method for connecting and transitioning from the PE pipe from below the ground to the above ground piping system. The PE-to-Steel transitions in our risers are designed to exceed the operating capabilities of the PE pipe in which it is installed. They meet or exceed ASTM D2513 – Category 1 specifications, which require that fittings maintain a pressure-tight seal and are able to maintain it while subjected to stresses that would cause PE pipe to yield. They also meet or exceed ASTM F1973.