Have you ever seen any fully waterproof motor in this size? Dimension is:D107*L176.5 mm
Now, it is available in E-ARK Tech store on Aliexpress.
For more details, pls check this link on our store, https://www.aliexpress.com/item/1005003104723543.html?spm=a2g0o.store_pc_groupList.8148356.22.40753b36vRc84m