Behrens 2168 3 1/2 Gallon Galvanized Steel
Amazon (Lowest internet price found:$3.84 + $5.37shipping)
Shipping Weight: 2.4 pounds
3-1/2 Gallon, Galvanized, Hog Pan, One-Piece, Seamless Construction.
16" diameter x 3.6" deep
Presented as a discussion item for a Dutch Oven fire pan that I think meets GC specs FOR DUTCH OVENS. Based on sq inches.
It is common to put removable legs on the outside of these.
A bolt holds the top of a larger pipe and wire the lower so that smaller diameter pipe 'legs' can be inserted to keep the pan off the ground.