Corner glass Plugging strip for NZXT H9 FLOW 2025

Do you own an NZXT PC Case? Do you hate that annoying gap between the front and the side panel? Well then this is the mod for you!!

I recently built a new PC using the NZXT H9 FLOW 2025 case (yes I did infact have to sell one of my Kidneys to afford the RAM!) The case is overall excellent but I was disappointed by the glaring gap between the front and side glass panels. Whats even more annoying than looking at it is the amount of airflow that escapes from it! I have my case on the floor as well, and the cold air gets blasted out the gap right at my legs! This is great for summer time but for winter… not so much! 

Apparently this gap is “by design” to prevent the panels getting damaged during transit according to NZXT. I looked around and scoured the internet for something, anything I could practically use, or print, that could bridge this gap. Sadly there was nothing and so I set out on a mini adventure to create my own solution to this problem! 

After much trial and error… I present to you the Corner Glass plugging strip for the NZXT H9 Flow (2025 version). I designed this part to be printed in TPU for maximum plugging effect and to allow it to attach/detach with no glue or tape and minimal effort. This does work, though not as well, in PLA also but you might need a touch of sticky tape on the inner part of the piece (depending on glass gap tolerance).

I believe this gap in the glass is fairly common amongst most of the NZXT FLOW cases and the size of the gap is usually the same too, so this should also work in other cases without issue. (This is untested though so if anyone with a different NZXT case would be willing to test it, that would be awesome!)

I made this to be printed on the H2S as one part as this is what I have at home, but I have also included a print profile with a  two parts version for printing on any smaller bed size. I'm not sure this will really beed of any use to anyone else as im sure most people dont care about the gap! But I figured I would upload this anyway just incase someone else can find this useful for them!

I am open to feedback also being my first home made project!