The Mr. Steam MSSUPER3R Steam Shower Generator is the largest and most powerful model in the MS Super Series, delivering 15kW of steam output for large residential steam rooms up to 482 adjusted cubic feet. Designed for homeowners seeking commercial-grade performance in a residential setting, the MSSUPER3R combines Mr. Steam's exclusive microprocessor operating system with AutoSteam® technology to produce a continuous, even flow of steam while maintaining precise temperature control throughout every steam session. Constructed with a corrosion-resistant stainless steel cabinet and industrial-grade, replaceable heating elements, the MSSUPER3R is engineered for years of dependable performance. Its compact design allows installation in closets, cabinets, vanities, or nearby utility spaces, while modular plug-and-play connections simplify installation, maintenance, and future accessory upgrades. Compatible with Mr. Steam's complete lineup of residential controls, steam packages, and wellness accessories, the MSSUPER3R can be customized to create a luxurious home spa experience tailored to your preferences.