Exo terra 18x18x24 screen top needed

[npsk8ter]

I just purchased this tank and ordered a screen top but it won't connect to the top. I was told this could be an older model. Does anyone know where I may be able to find a screen top for a older model of this tank? Please help.

 

[BrightReptiles]

I just threw one out from an 18x18x18 that probably would have worked. Damn bad timing.