Amtrol 110 Expansion Tank

The Amtrol 110 Fill-Trol tank (model 110-002) is a reliable pre-pressurized expansion tank for closed-loop hydronic heating systems. It features a 1/2" NPTF connection and is supplied less the Fill-Trol valve, letting installers pair it with their preferred fill valve. The tank accommodates thermal expansion to help protect the system from excess pressure.