This model was provided to me by Creality support to fix the broken pneumatic connector on top of the extruder of the K2 plus.

You can also print this to prevent your pneumatic connector from being damaged over time on the top of the extruder of the K2 plus, as with time the bowden tube is pulled out from the extruder’s connector while printing and it damages the teeth of the connector.

Print in ABS/PETG and supports are necessary.

Disclaimer: I have not designed or built this model.

Printables link: https://www.printables.com/model/1229085-creality-k2-plus-bowden-tube-protector

Source: Creality Support on WhatsApp