Sherlock Holmes had a gasogene to make seltzer. Playwrite George Bernard Shaw has one mentioned in one of his plays.

I like Penguin Cola which has selzer flavors.

Gasogene - Wikipedia

Ordering Seltzer and bitters in a bar may get you a free drink. When people order this or tonic water with quinine and bitters, the bartender may think you are a designated driver and therefore give you a drink for free.