Well, its late but I went out to the shop and measured the tank. It is "approx" 13" high, 13 inches deep ....but it is only 25 inches outside to outside which includes the flange....the "body" of the tank is more like 24".
These tanks, I believe, are only for the 1/2 ton panel, surburban and canopy express but not 100% positive. But I am positive the tank I took off, the tank I now have, and the tank made for the 1/2 ton panel/burb/ce are the same as the measurements above.
Tim, George, where you at?!!