Last week I got a used upright freezer from a nieghbor who is moving . It's a 3 year old Frigidaire 21 Cubic ft upright. Yesterday the Johnson control came took 3 minutes to install set it at 40 and it works like a charm..
Best part it was FREE!!!!
Right now I have some grain in it that I put in those "Space bags" that Wal Mart sells they work great reusable and all you need is a vacuum cleaner to vacuum seal the bags . I used my shop vac and the grain is hard as a rock something like those bricks of coffee.