Grid in only one IG cavity for Triple-Glazed

[nipu...@gmail.com]

Hi Everyone,

I have a question regarding an IG unit with a grid inserted in one cavity (as shown in the attached picture). What material should be used in the second IG cavity, which does not contain a grid?

Thank you for your guidance.

[nipu...@gmail.com]

From my understanding, it should be the same argon + air gas fill, but I wanted to double-check with you.