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The replaceable head is a game-changer for my narrow water bottles—I don't have to bend the wand awkwardly anymore. It reaches all the way down and scrubs the bottom corners better than my old sponge.

Finally, a brush that actually scrubs the bottom of my Hydro Flask without scratching it. The replaceable head is super convenient for swapping out when it gets worn.

I was skeptical the universal wand would actually fit my narrow Hydro Flask, but it slides right in and the 2.5" head scrubs every last bit of grime from the bottom. Swapping the head is effortless, and now I actually use it on baby bottles too.