Sandtrooper "manifold" / toilet siphon

This is my take on the toilet siphon used on the Sandtrooper backpacks in Star Wars: A New Hope. It's not completely accurate but looks the part well enough for me.

The back of the model has some flat surfaces to help make a secure connection to the pack. I didn't put any mounting holes in it, since that would really depend on the box you are connecting it to.