Maine Propane Tank Setter Practice Test

Anodeless risers are designed to connect the underground propane line to the above-ground tank using fittings that can seal securely to multiple pipe materials, making them versatile for common piping options. That’s why they’re listed as compatible with PE piping, copper, or black iron. For PE, you’d use compression-style or listed adapters that seal properly with polyethylene; for copper and black iron, you’d use appropriate threaded or adapter fittings that match their standard piping threads. The key idea is that the riser assembly is manufactured to be listed for use with these three materials, so installers can choose the piping material already in place or easiest to work with, while still maintaining a safe, leak-tight connection and proper corrosion protection.