Vent covers for Zen Float Tent (v2)

Update: 2019-05-24
I've added a variant for the newer zen inflatable tank, which has thicker walls/vents. I designed this one based on measurements I received, but I haven't tested it myself. If someone prints a set and tries them, I'd love to know if the length is right.

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This is an improved vent cover for the vents on a zen float tent.

The inner fins on the zen's vent cover have a tendancy to break off, and are a bit annoying to insert into the vent.

This version has heftier fins that are tapered at the end, for ease of insertion, as well as a central post that allows the inner cover to be inserted into the outer cover.

The central post has a keyway that provides a closed and open position. In the closed position, the inner cover is pressed against the vent, to help avoid the humid air escaping.

And of course you want a little bit of airflow while floating, to replenish the consumed oxygen in the tent. You can easily twist and pull the inner cover to move it