It is a portable, but it isn't something you'd want to carry around much. Although the outer housing is made of aluminum, and it only measures 18 inches long, 14 inches tall, and 9 inches deep, it is quite heavy. In fact setting it on the bathroom scale, it weighed in at 80 pounds. It actually has a 1/2 horsepower electric motor in the bottom center that has a shaft out both ends to drive each of the two compressor motors.
This was my prize purchase at the swap meet in Bremerton WA this last weekend.
