A Reversible Membrane Electrode Assembly (MEA) can be used as in an Electrolyzer for Hydrogen production or as a Fuel Cell. It is perfect for educational products or demonstrations of the advantages of hydrogen as an energy storage medium. We can assist with additional customization as well as the unique design aspects of reversible Fuel Cell / Electrolyzer systems. These Reversible MEAs are 3-Layers, also known as Catalyst Coated Membranes (CCM).