Hookah replacement inquiry

[Drewdrops]

Hey friends, so I am new to the forum but I could use some help. I recently moved houses and I lost my hookah downstem in the process. My hookah is a little aged and it does not have any sort of brand or recommendation of where I might find a replacement. I received it from a roommate and it has served me well. Would someone be able to steer me in the right direction of where I might find a replacement? The few things that I have managed to find claim that their downstems only work for a certain brand of hookah. I just didn't want to purchase one without knowing the correct size etc. This site wont let me enclose pictures because the file size is too big, but any direction would be welcome.