I have a Katadyn MyBottle Purifier. I have to say that it is a little bulky. It is very long and the filter makes it heavy. Although a lot of the weight is because the head is very reenforced and feels very solid. I have it for backpacking when I don't have my pump filter or when I am not carrying a water bladder. I have seen many people rate bottles like this badly because people tried to replace their pump filter with them. Bottles like this are not made for you to squeeze water through to fill a water bladder and they will not work well for that. I like the bottles in that video as they seem less bulky as the one I have. I am not sure if the difference between the filter sizes between those bottles and this one makes a difference as the one in the Katadyn is much bigger. I know these are different products but I hope my experience with this bottle helps you decide if you want a bottle of this type. I like the ones in that video and might have gotten one instead of this one if I had known about those! I hope this helps you outl -Nhoj