This little Hydratube was discovered by one of my UK suppliers and it’s absolutely wonderful, having water filtration in the small package is a must for getting larger cooler sessions. The Hubble Bubble performs exceptionally well for a small hydratube. Getting water in my mouth was always a problem with small bubblers, this one keeps it away, even when drawing in quickly.
this hydratube stands around 5in tall (127mm)
and is 1.5in wide (39mm)