This product also comes in a self-selling shipper display, that includes 8 complete spray guns, 12 spray gun power units and 2 reusable glass products containers. Display size is 10-1/4 inches x 16 inches.
Assuming $5.80 buys all the above.
I spray on varnish when I can in the shop. But I will definitely try this for the bits I can't bring home to the shop. Spraying on the varnish is tops. I had already decided that my next boat would be large enough to have an industrial sized air compressor in the engine room.