This came in my Camelbak Mule last year. It has never leaked, but the seals are getting very work, so that it is becoming very difficult to connect and disconnect the hose and the fill port seal binds up sometimes. Mineral oil lubes them enough to work, but definitely a huge pain. I'm going to have to get a new one from Camelbak, but I don't want to be without it for too long. Other than that, I love it.