The gap is sized so it flexes to allow a standard 4" dryer hose to be pushed through while still holding it in place.
Designed to fit two #6 drywall screws.
Printed with PLA, 15% infill. Supports are optional for the screw holes
An alternative model with an offset hole is included. It wasn't necessary for my case but could be useful if the hose is heavy
The author marked this model as their own original creation.