A nozzle for a solar fountain as in the photo or another with a 10 mm diameter connection.

The nozzle rotates the fountain and has a downward water outlet, which prevents excess water from being thrown out of the tank.

The nozzle has holes with a diameter of 1 mm. If the holes do not print correctly, they will need to be corrected with a 1mm drill.

I recommend printing the nozzle with a low layer, 0.12 mm or less.

The tube fits quite tightly to maintain a tight seal, if it doesn't want to fit into the fountain connector, lightly heat the tube at the end with a lighter and then press it onto the connector.