Super basic is not going to be a really nice finish usually. If you want square white bathroom tiles it's usually because you don't want to spend money on them. Criterion tiles do a China clay satin white in 30x30 for £30 psqm. Not sure why you would want to do that though. Probably Porcelanosa do some too. Topps tiles seem to do some fancy white tiles and the have a "special" store in Wandsworth Bridge Road for customers who won't go to a shed outlet.
Super basic is not going to be a really nice finish usually. If you want square white bathroom tiles it's usually because you don't want to spend money on them. Criterion tiles do a China clay satin white in 30x30 for £30 psqm. Not sure why you would want to do that though. Probably Porcelanosa do some too. Topps tiles seem to do some fancy white tiles and the have a "special" store in Wandsworth Bridge Road for customers who won't go to a shed outlet.