Fort Wayne, Indiana

Chilly GOAT

Michael Phelps Chilly GOAT cold tubs and contrast therapy tubs from Master Spas.

Chilly GOAT is the cold tub line from Master Spas, the Indiana hot tub maker, co-branded with Michael Phelps. The Alpine tubs build a 2.1 horsepower chiller into the cabinet and run on 120 volt power, while the Valaris splits one shell into a hot side and a cold side. Master Spas says the Valaris is built in the USA of U.S. and imported parts.

Cold plunges

Brevley & Sons is an independent retailer and guide. Prices and specifications are from Chilly GOAT's public site, checked October 23, 2026. Product names belong to their makers.