Hi @maib,
Thank you for your question and welcome to the Bunnings Workshop community, it is fantastic to have you join us.
Just to clarify, are the evaporative cooling vents you are referring to similar to this Haron 350 x 350mm White Square Plastic Ceiling Vent? If it's possible, some photos of the vent with dimensions for scale would be handy to determine the best course of action.
Unfortunately, I haven't been able to find a generic product that you can replace these clips with, which leads me to believe you will need to order a replacement part or replace the whole vent.
If it is a Bunnings product, I'd suggest heading to your local store and speaking to the Special Orders team. They will be able to contact the manufacturer to order replacement parts, whether that is a clip or the whole vent.
If it is not a Bunnings product, I'd suggest inspecting the vent for a make and model number and contacting the manufacturer. They will be able to advise whether a replacement part is possible, or whether you'll need to replace the vent.
Let me know if you have any further questions or if there's anything else I can assist with.
Jacob
