since the topic was brought up i am reposting one of the biggest size northiana that i came across, measurement and comparison with can drink.
On some encouters i came across equally big northiana pitchers though no measurements were taken but from my estimation their size look almost similar.
I remember we filled the pitcher with water-1.4 liters was all it takes to fill to the brim. The oblong opening of the peristome doesn't allow it to hold more water.
peristome measurement-a different pitcher from the same plant