[...] So, I took it into my own hands, took this Nalgene bite valve and confirm the quick connect fitting was the same as the Katadyn Hiker Pro fitting in the store, bought and converted my daughters Camelbak over to this valve so that both of our Camelbak bladders would be able to benefit from the quick connect hookups of our water filter. I actually prefer this bite valve over the generic "Big Bite" that Camelbak provides with their bladders.