Jason International manufactures five lines of Whirlpool, AirMasseurâ„¢, Air-Whirlpool and Soaking Baths, which incorporate Jason's proprietary Ergonomic Design, Quiet Designâ„¢ Engineering, and Sani-Designâ„¢ Technology. The Home Spa Collection brings the time-honored spa experience indoors. The Carreraâ„¢ Collection introduces a new medium for bath design with the look and feel of natural stone. The formaâ„¢ Collection is a minimalistic offering with clean lines and modern styling. The Designer Collection weds design flexibility with state of the art hydrotherapy technology and offers the most configuration options. The Integrity Collection was created with builders and contractors in mind. It offers Jason quality at an exceptional value.