Air hole size

[nymapleguy607]

Does anyone know what size the air holes are that come through the door on an intenso-fire arch? I tried looking through some old threads and couldn't find this size. Thanks for your help

[dschultz]

I will look at mine today and let you know

[dschultz]

there 1/2'' I.D. and 3/4'' O.D.

[nymapleguy607]

Thanks thats what I was looking for