Professional Cold Plunge Tub with Built-In Chiller – 37°F Cryotherapy Recovery Bath

Self-contained cold plunge with 1 HP commercial titanium chiller (cools 100 gal in under 60 minutes, holds down to 37°F), triple-stage filtration (20-micron + UV-C + ozone), insulated double-wall acrylic tub, Wi-Fi app control, GFCI safety, leak sensor, auto-shutoff. Built for daily home use by athletes and biohackers.