Full Gintama filler list

Is Gintama episode 19 filler?

Canon No, episode 19 of Gintama is canon.

#19

Why Is The Sea So Salty? Because You City Folk Pee Whenever You Go Swimming!

海がなぜしょっぱいだと?オメーら都会人が泳ぎながら用足してくからだろーがァァ

Aired 8 Aug 2006

Next canon episode: 20

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