pls. confirm the GST rate & hand code

Yep, GST is will available on all the electronic goods it is which 18% on every product which is not confined. It changes from gadget to gadget. Some products may have more than 18% because of their shipping charges traveling from different state and different countries.

While Water heaters are mostly having 18% itself. But, Juicers mixer grinders may have less than 18% which is based on the brand you picked. If your are really willing to buy Juicers. Check the link given below, It will give you products which are less GST than compared to another ones.

Find this for best ones which have less GST on a while https://www.homegamut.in/best-cold-press-juicer/