I got this dunk tank made by Eternal Quartz that seals wonderfully and will fit even the larger slurpers/towers/blenders. Pretty sure I have an extra orange O-ring, but this is a really great and classy way to clean your Quartz, it’s extremely well made and the laser etchings are pretty beautiful.

I cleaned used this for about a week before I was able to get a another one from EQ with my own design on it, it’s essentially new but I’ll be honest, it’s seen a slurper or two.

Custom Eternal Quartz boro ISO dunk tank, wide neck.