Grout sealer recommendations?

tzinho

I have just finished a tile installation in our tub/shower stall and bathroom floor (1/8" grout lines, sanded grout), and am searching for recommendations for a good brand of grout sealer.

Price is not an issue... I will happily pay top dollar for the best possible seal and protection.

So, what brand of grout sealer do the pros actually use out there after all the Kerdi, Ditra, tile and grout are all installed?

Thanks in advance for your suggestions.