Dimension One Spas have been the leader in the design and manufacture of premium hot tubs since 1977. What other companies consider innovation is old news for D1, who was the first to utilize ozone, introduce fountains and patent the curvilinear shape of the Bay Collection. The design and engineering team at D1 have taken the time to listen to YOU, which has led them to develop the most therapeutic and relaxing experience available. The seats in their spas are based on over 100 measurements of the human body so you can always find the perfect fit.

D1 is also committed to the quality of your tub for life. That’s why their patented UltraLife shell carries a lifetime warranty against cracks, leaks, fading or other wear from environmental exposure. Their patented Envirotect skirting, built from durable, all-weather material including recycled milk jugs, also carries a lifetime warranty. It requires no waterproofing or staining and will look as new as the day you bought it for years to come.

Dimension One Features

Ultralife Shell


D1’s exclusive UltraLife shell has superior resistance to the effects of sunlight, chemicals, and weathering, making it the obvious choice for those who want the most durable shell on the market. The timeless beauty of softly textured, non-slip UltraLife is easily maintained, doesn’t require special cleaning solvents, and blends with any décor or color scheme. At night, your spa can take on any mood or color that you choose as UltraLife white reflects light beautifully.

Because traditional spa shell materials had proven that they weren’t as tough as some alternative polymers, Dimension One Spas worked with Bayer®, the largest and most respected chemical manufacturer in the world. Together we produced an exclusive polymer formula with unparalleled strength. This high-performance spa shell material is specifically designed to endure the harsh realities of the spa environment and is the most durable and practical spa shell material available.

UltraLife is the only shell that carries a Lifetime Warranty* on its structure and surface. With UltraLife you have peace of mind knowing that if the spa should ever crack, blister or delaminate, it will either be repaired or replaced. Complete details are available at your nearest authorized Dimension One Spas dealer.

Jet Therapy Pillow 


D1’s patented Jet Therapy pillow provides you with the only adjustable neck and shoulder massage system in the industry. With multiple positions to choose from, you can get the perfect massage whether you’re 5’2” or 6’6”. The Jet Therapy pillow also features four powerful jets placed in a curved, padded head cradle for ergonomic support. Features two or four powerful jets.

Magnetic Switch


For the ultimate in convenience, D1’s exclusive magnetic switch gives you underwater fingertip control of your hot tub’s major functions. Need to activate the jets or turn your waterfall on? No problem. Keep your hands and arms underwater where they can stay warm and cozy.

Dynamic Massage Sequencer


With the Dynamic Massage Sequencer, you can choose from six pre-programmed massage sequences that turn an ordinary hot tub soak into an extraordinary, full-body hydrotherapy experience. This digital control panel includes an active therapy display, pause control for specific pain areas, speed control to adjust your sequence time, and silent valve operation for a peaceful experience.