are 72 and 73 tanks the same?

[The 8 Ball]

I'm trying to sell two 73 tanks and a guy asked me if it'll fit a 72. No clue? anyone?

 

[650Skull]

Same frame for the 72/73, different profile tank. 73 was a stand alone year tank

 

[The 8 Ball]

So call me a little slow...

Would a 73 tank fig a 72 frame?

 

[paulpops55]

Hello 8 Ball ! What condition are the tanks in ? Do you have any pictures ?

 

[The 8 Ball]

Admittedly a little rough. rust can be heard rattling around inside, but they both have the petcocks. One has the cap (no key) and one doesn't. Here they are.