Summary

Here is V2.0 of the float valve central 1in (float valve) on 7 outlets.
The holes here are not completely open. If necessary, they can be broken through where necessary to provide space for the connections. (Such as a branch box in electricity) The thickness of the box is 2mm, the thickness of the material to be pushed is 0.2mm. You may need a sharp blade, such as a scalpel. Do not push with your bare hand, sharp edges can hurt you. If necessary, use a scalpel to pre-cut.
If the holes are not completely open, this box can also be used for other purposes. Cover for this is here: https://www.thingiverse.com/thing:6845421