The All American 921 and 925 are two models of pressure canners made by the Wisconsin Aluminum Foundry. Both canners are made of durable aluminum and have been designed for use with home canning. The All American 921 has a 21-quart capacity, while the All American 925 has a 25-quart capacity. Both canners come with a pressure regulator, an automatic release valve, and a safety fuse. The difference between the two models is in their size and capacity. The All American 921 is slightly smaller and has a lower capacity than the All American 925.