Cal Spas' manufacturing headquarters is located in Pomona, CA. A sprawling complex targeted to double square footage. This precision facility produces the world's leading home resort products. The site boasts advanced R&D, rigorous testing procedures, and a dedicated workforce, all synchronized to produce your custom-tailored masterpiece. To the right is an insight into the quality, craftsmanship, and advanced engineering that create Cal Spas' superior, world-renowned hot tubs.