“Best little bubbler I've tried. 4 stars because it doesn't fit well on the mouthpiece. Its wobbly. I have 3 mouth pieces from my iq and iq2. And it's the same on all. So definitely the bubbler. And it whistles if you pull it not attached to the iq. Other than that it's awesome.”
“I absolutely love my hydrotube however the second day I used it and gently placed it on my Davinci mouthpiece it broke. I contacted Davinci and their support is wonderful. They replaced it with a new hydrotube.”
