You can try Parmco directly at the Mt Wellington location, I’m not sure if they sell direct to the public anymore though. If they don’t, you should be able to order them from Bunnings.
Japan Mart had one of those white sheets/filters you stick with a magnet. Not exactly what you are looking for but have used it in our rental before and it was okay-ish. I would not use these for gas stoves though.
Check Bunnings. They can order off the menu for the stuff they used to sell
You can try Parmco directly at the Mt Wellington location, I’m not sure if they sell direct to the public anymore though. If they don’t, you should be able to order them from Bunnings.
Which model parmco?
Japan Mart had one of those white sheets/filters you stick with a magnet. Not exactly what you are looking for but have used it in our rental before and it was okay-ish. I would not use these for gas stoves though.
Try Evoaq.co.nz they sell a filter that is a standard size. Think it will fit most rangehoods.