Can this be used on cast iron?

I never knew there was such a thing as a stainless steel french press. I did a quick research and there's a stove top one from Stanley for almost half the price of the Gator and it's double walled which means the coffee will stay hot for longer.

After had gone through more than half a dozen of glass ines I think it's time to switch to something like this.

We got a Bosch dishwasher and absolutely love it. It's super quiet too.