looking for a link to Bunnings product for this magnetic strip
10mm width
3-4mm depth
Hello @ozziebattla
Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about replacing a magnetic strip.
The closest item in the store that is comparable to your magnetic strip is the Permastik 12mm x 5m Magnetic Tape. This is actually a part of the block out mesh sold at the store. I propose visiting the store and visually inspecting the magnetic tape to see if it will suit your needs. Another method you can try is to locate the manufacturer of your shower, if they are still in business, they might have spare parts available for your shower.
If you have any other questions we can help with, please let us know.
Eric