Kooru Cold Plunge Tub

Handcrafted in San Diego from sustainably sourced redwood, this cold plunge arrives completely set up and runs on a standard 110V outlet — no special electrical work needed. Each board is hand-selected and finished using Shou Sugi Ban, the centuries-old Japanese technique of preserving wood through controlled charring, which deepens the grain and protects the tub without chemical treatments.

Why cold plunge:

- Speeds recovery and reduces soreness after training
- Sharpens focus and mental clarity
- Builds resilience through consistent cold exposure — good stress that makes you stronger, the same way cold water acts as a hormetic stressor on the body

Specs & Features:

- Redwood exterior, finished in Shou Sugi Ban
- Tub compartment: high-density polyurethane, custom-made
- Exterior size: approx. 64" L x 34" W x 35" H (33" minimum clearance needed for doorways)
- Interior tub size: 36" L x 24" W x 30" H
- Holds approximately 60 gallons, adjustable water height
- 1/4 HP chiller, 950 GPH
- Ozone (O3) water sanitation — no chemicals required
- Power usage: 350-500 watts, 3-5 amps on a standard 110V GFCI/grounded outlet
- Weight: approx. 400 lbs, moved by two people via corner posts or trolley
- Filter changes every 1-2 months depending on use
- Available in Natural, Oiled Leather, Spanish Oak, Dark Natural, and Teak
- Production time approx. 2 weeks, plus shipping

Recovery, refined by hand — every board selected, charred, and finished for a tub built to last.