I have the same exoterra and when I started looking for replacements the only decent looking one I could find was focused cubed habitats.
https://focuscubedhabitats.com/produ...lacement-tops/
Now I haven't bought this because it's kinda expensive so I don't know the quality or if it would work for your situation but it's a PVC top with a stainless screen so it sounds better than the exoterra screen. Again not sure if this helps but at least it's an option.
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