Sunlu S2 vertical PTFE tube guide

Step 1, Drill out one of the existing holes in the desired direction with a 4 - 6mm drill. Dont forget to vacuum up the shavings.

Step 2, Insert your PTFE tube into the hole you have just drilled out

Step 3, Insert the tube into the guide, you may need a tool to open the guide slightly.

Step 4, Firmly push the guide into the slot in the dryer's lid.

I recommend PETG for the higher temperature resistance and flexability.