The cold line

Cold, on demand.

Matte-black submersion units built to sit beside the sauna — or stand alone. Two ways to make cold: bring the ice, or let the chiller hold the line at 3–8 °C.

PLUNGE ICE — matte-black ice-fed submersion tub with the SEND mark
COLD LINE · ICE-FED

PLUNGE ICE

Bring the ice, we bring the rest

An insulated, ice-fed submersion tub. No power, no plumbing — fill it, dump two bags of ice, get in. Drains from a ball valve when you're done.

no power needed2-person capacityinsulated shell

PLUNGE PRO — matte-black chilled and filtered submersion unit with the SEND mark
COLD LINE · CHILLED & FILTERED

PLUNGE PRO

Chilled and filtered, always ready

A full water chiller and filtration loop holds 3–8 °C around the clock. Filtered and circulated, so the water stays clean — step in at 6 am without thinking about it.

3–8 °C on demandfiltration loopruns on a plug

Side by side

Which cold is yours?

PLUNGE ICEPLUNGE PRO
How it gets coldYou add iceBuilt-in water chiller
TemperatureAs cold as your ice supply3–8 °C, set and held
Water careDrain and refillFiltered & circulated
PowerNoneStandard plug
Best forEvents, trials, tight budgetsDaily routines, shared use
FinishMatte black shell · SEND mark in cream · cold-line bars

The ritual

Hot leads. Cold follows.

Fifteen minutes on the top bench, two in the black tub, ten wrapped in a towel watching the steam come off your arms. Then again. That's the whole product.

Pair it with a pod Price a plunge