Factory OEM motor for the E-2 (e SERIES™) Rainbow system. This motor has been improved in several areas over the years to give better performance and durability than your existing motor.
In 1998, Rexair installed two motor versions into the E-2 Rainbow. One was the AME motor, and the other was the GSE motor. As time went on, they found that the GSE motor was the superior design and started to install it exclusively while discontinuing the AME motor.
In late 2016, a third version motor became available. This is noted as the "E" version and replaces the GSE design. Your original separator and nut will fit all three designs.