I don't like the various water hose attachments as they drastically reduce the cross-sectional area of the hose and cut the water flow.
so I made a friction-fit nozzle that slips over the hose from the outside In hopes that this design has fewer losses. 

This design is intended to be used on a normal hose without any attachments

You can create a nozzle that imitates the squishing of the hose as usually done by fingers or make a firehose-like nozzle with this parametric file; everything is customizable.


Measure your hose dimensions and enter them in the f360 file.

• Hose other diameter = Hose_Diameter
• Hose wall thickness = Hose_Wall

To change the nozzle Slot size, change SlotW & SlotX values.
*(Should be SlotX > SlotW)

The included STL dimensions are for hose size 22.5mm with a 2.5mm Hose_wall. which is ¾"?
The nozzle dimensions are 80mm by 1.25mm.  
 

I will add another sizes if you ask.

Update: 2025/07/31

• Hose to Male ¾" thread