The cold plunge that wakes up your body and mind

Nov 8, 2025  |  

The Hydragun Supertub takes cold therapy to the next level — giving you a way to calm inflammation, boost circulation, and sharpen focus. It’s not just about endurance; it’s about learning how your body responds when you push pause and breathe through the cold.

You can create a cold plunge in your bathtub, but that requires a lot of ice. If that’s not practical — and if money isn’t an object — you could opt for a cold-plunge tub with a chiller. (Cheaper versions don’t have a chiller, so you have the same problem as you do with your bathtub — you’ll need to fill it with ice.) The Supertub by Hydragun has a triple-layer Permafrost chilling system that keeps water as low as 37.4°F/3°C throughout the day, along with built-in filtration and a commercial-grade ozone generator to disinfect the water.

Hydragun Supertub

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