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Kaldera Plunge 320
320L foldable cold plunge tub with reinforced steel frame
(4)
£129.00£159.00
- UK delivery: 5–10 working days, free over £100
- EU delivery: 5–10 working days to 20 EU countries
Which countries?
Austria, Belgium, Croatia, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Portugal, Slovakia, Slovenia, Spain
- 30-day returns · 2-year warranty on chillers & blankets
Research-cited guidance · UK & EU warehouses · Transparent pricing
In stock — ships in 5–10 days from UK/EU warehouse
Delivery+
Free UK & EU delivery, dispatched within 2 business days. Typical transit is 5–10 days from our UK/EU warehouse depending on destination.
30-day returns+
Not right for you? Return it within 30 days of delivery for a full refund, no questions asked.
Specifications
- Capacity (L)
- 320
- Layers
- 3
- Lid
- insulated, included
- Drain
- bottom drain valve
- Material
- 800g/m² PVC-coated tarpaulin, steel frame
Description
The Kaldera Plunge 320 is our best-selling tub for a reason: it fits a full-grown adult up to 6'4" with room to submerge to the shoulders, and it folds flat for storage in under two minutes when the session's done.
The shell is built from 800g/m² PVC-coated tarpaulin over a powder-coated steel frame, so it holds its shape under load instead of bowing at the sides like cheaper folding tubs. A double-stitched seam and welded floor keep it watertight through daily use.
Pair it with a Chill Core chiller for consistent temperatures down to 3°C, or run it with ice for ad-hoc sessions. The included insulated lid cuts heat gain by roughly 80% between uses, so a chilled tub stays cold overnight.
Reviews (4)
Marcus Ellery
Been using this every morning since January. The insulated lid genuinely keeps it cold overnight with a Chill Core 300 running — water's still at 4°C by the time I get in.
Priya Nathwani
Fits my husband at 6'2" with room to spare, and the frame hasn't budged after three months of daily use. Folds down small enough to store behind the shed.
Dan Okafor
Solid tub, well made. Only reason it's not five stars is the drain valve is a bit fiddly to seat properly the first few times.
Lucy Fairweather
Upgraded from a cheaper 200L tub and the difference in build quality is obvious immediately — the steel frame doesn't flex at all when full.
