The CPAP hose can be very irritating. If you try to put the hose aside after use, it tends to slide down. This clip helps to hold it securely in place.
It prints without supports. The lip is there to prevent accidental twisting because it is only attached with one screw. There is a second model without this lip.
This model is designed for a standard CPAP tube with a diameter of 18 mm. I used a 3.0 x 16mm screw to attach it to a shelf.
The author marked this model as their own original creation.