Kohler XTX675-3013 Breather Tube Hose Size

Hi all!

I have a Kohler XTX675-3013 that has some cracks forming in the breather tube hose (Part #:14 123 19S). I have looked online to find the replacement part, and some places do have the part in stock but I don't really want to wait 1 week or so for it to get to me. So I was thinking, could someone tell me what the ID (inside diameter) of a small engine breather hose normally is? This way I can get more than I need to replace it, if I do need to replace it again in the future.

Thanks