1-4 of 4 Answers
A very long time.
Sorry, there was a problem. Please try again later.I know I have had it for about 6 months and have never had problems
Sorry, there was a problem. Please try again later.Unopened and unused, the cartridge should be just as fresh as the day it was manufactured for well over a year, more often than not two.
Sorry, there was a problem. Please try again later.Over a year
Sorry, there was a problem. Please try again later.