Introducing the Ice Box by Coldtubs—designed to comfortably fit 5-7 people. This spacious cold therapy solution is perfect for teams or group recovery sessions, offering a shared experience with the same professional-grade cooling performance Coldtubs is known for. Here's what COLDTUBS have to say about their Icebox unit: The Icebox is designed to fit 5-7 people. This is a great unit to have when you want to treat multiple people at once. All of our tubs plug into a Standard 110v wall outlet, fit through a Standard doorway, are filled up with a garden hose, and have temperature ranges from 42º – 104ºF.