
4 °C to 40 °C
The full range in a single vessel. A deep plunge on a heavy training day, restorative warmth on a recovery one, and precise control over which you get.
COLD WATER RECOVERY · BY ARC
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ENGINEERED QUIETLY
Good engineering is the kind you stop noticing. Everything here exists so that stepping in remains the only decision you have to make.

The full range in a single vessel. A deep plunge on a heavy training day, restorative warmth on a recovery one, and precise control over which you get.

UVC purification eliminates microorganisms. Ozone treats impurities at the molecular level. A 5-micron sediment filter traps what remains. You should never have to question the water.

THE DAILY PRACTICE
Cold water asks something of you before it gives anything back. The breath shortens. The mind narrows to a single point. And then it settles. You find you are still there, composed, in water that was supposed to be unbearable.
That is the practice. Not the cold itself, but what you learn about yourself inside it.
WHY COLD WORKS
Cold is a controlled stress, and the body answers it precisely. What follows is what that answer makes possible.

Down to 4 °C for a deep, clearing plunge. The range is yours to set, to the degree, on the day.

Up to 40 °C when the body asks for heat instead. Contrast work without a second installation.

Cold constricts the vessels and moves out what training left behind. The return of warm blood is where the repair begins.

Cold water is a controlled stress. Held regularly, it teaches the nervous system to settle under pressure. That is a skill which leaves the water with you.

Core temperature drops after immersion, and that drop is one of the clearest signals the body has for deep sleep.

480 litres and 210 cm in length. Space to lie back, extend fully, and stop managing your own position.

UVC, ozone and a 5-micron sediment filter working continuously. Every session is as clean as the first.

Precision control and a touchscreen console mean the vessel is always ready. The only variable left is whether you show up.
FROM DELIVERY TO DAILY USE
Three steps stand between delivery and your first plunge.

A level surface able to carry a filled 480-litre vessel, with clearance to step in comfortably, a suitable power supply, and access to a drain. Our team will confirm the requirements with you before delivery.

Fill with room-temperature water, then set your temperature on the console. The circulation pump and filtration bring the water to condition and hold it there.

Keep the appointment, the same hour, most days. Cold water rewards consistency far more than it rewards endurance.
THE MEASURED DETAIL
Every figure below is drawn from the Cold Rush Infinity specification. Confirm your dimensions and electrical supply before delivery.
CLEAR ANSWERS
The questions we are asked most often, answered plainly.
It is the most capable vessel ARC makes. 480 litres, 210 cm in length, and a full 4 °C to 40 °C range under precise control. If you intend to plunge daily, want to lie back fully rather than fold yourself in, and expect the vessel to look considered in the room, this is the one.
A level surface able to carry a filled 480-litre vessel, clearance on all sides, a suitable electrical supply, and access to a drain. Our team will confirm the full requirements with you ahead of the delivery date.
Three systems work together and continuously: UVC purification, ozone treatment, and a 5-micron sediment filter. Clarity is maintained between sessions rather than restored afterwards.
Yes. The range runs from 4 °C to 40 °C, so contrast work is a matter of setting the console rather than owning a second vessel.
The filtration system handles daily water quality. Periodic draining, cleaning and filter replacement is required, our team will set a schedule with you at handover.

ON YOUR TERMS
The Cold Rush Infinity is the most significant piece in the ARC range. Speak with our team about any other concerns you might have. Your recovery routine, is of utmost importance to us, so we will do our best to support your journey.
GET TO KNOW YOUR EQUIPMENT
Precision cold and restorative heat in a single 480 litre system. Engineered to hold your chosen temperature, keep the water pristine, and stay ready for every session.
Temperature Control
Adjustable from 4°C to 40°C and set to the exact degree on the smart touchscreen console. A deep cold plunge or a warm, restorative plunge, from one system.
Capacity and Build
480 litres of space to move, stretch, and fully immerse. A high-grade acrylic frame with a smooth, lustrous finish, sealed by a double thermal insulated lid and a premium fabric cover that holds temperature longer and reduces energy use.
Water Treatment
UVC purification and ozone treatment work together to eliminate harmful microorganisms and impurities. A large 5-micron sediment filter traps debris and keeps the water clear.
Circulation and Safety
A 1 HP self-priming circulation pump maintains consistent flow for even temperature throughout. An integrated safety shutoff adds protection to every session.
HERE TO HELP
If you are weighing the Cold Rush Infinity against another option, or simply want to know how it would sit in your space, speak to us. No pressure, and no script.