Why D1 ?

DIMENSION ONE SPAS OF PHOENIX A division of the Jacuzzi Corporation Serving Maricopa County Since 1982


Our Team at Southwest Spas, thanks you for your interest in our product.
Our team is available to help make your shopping experience informative and pressure free.

Why do we only represent one spa manufacturer? Simple – our experienced staff has over 38 years of combined experience working for and with the best spa manufacturer in the industry. From Executive, through Sales, to Service, we know details about your new hot tub and its operation other retailers could only dream of. Now is a great time to visit our dealer showroom at 1110 S. Country Club Dr. Mesa, AZ 85210. Allow us to demonstrate our spas for you and let you explore their advanced features. Come see the difference quality, service and commitment can make in your new spa.

Our manufacturer, Dimension One Spas, has been leading the industry since 1977 with more exclusive patents on spa design than any other manufacturer, such as the Ultrapure water management system, the UltraLife spa shell, and curvilinear design found on The Bay Collection.

Dimension One spas make use innovative technology to be more energy efficient than any spas in the last 15 years. We offer completely custom installations, so you know your spa will become a valued asset on your property. Plus, you’ll especially love what really makes us the best – personal service from the owner of your local D1 dealership!

By combining Style + Art, we have designed a hot tub that appeals to your soul as much as it soothes your body. A hot tub so Smart + Reliable that it practically maintains itself; Pure + Simple. And in our pursuit of Ultimate + Performance our engineers have studied human anatomy, ergonomics, fluid mechanics, aquatic massage, acupressure and reflexology so extensively we actually invented a new science; we call it “hydronomics.”

energy efficient

Dimension one spa has always understood that keeping your energy cost as low as possible is yet another way to help you enjoy your spa experience. Here are a few of the ways we have built one of the most energy-efficient spas.

Patented Adjustable Jets

Varying the power of your massage is easy with patented jets featuring an adjustable design that makes it easy to grip and turn underwater.

Ultra Pure Water Management System

D1 uses low power, 98 Watt circulation pumps to purify your water. In fact, 84% of the power that Ultrapure uses is returned to the water as heat, warming your hot tub for free.

Echo Switch

Various-sized therapeutic “bumps” have been grouped together at key acupressure points for the arms, hands, wrists, and feet. These bumps stimulate trigger points in these areas, providing you with an acupressure massage

High-Density Foam Covers

Every D1 hot tub has a custom cover that has been tailored specifically to fit the hot tub model it is delivered on. In addition to a tight fit on the edges, every cover has a linear heat seal on the seam to prevent heat loss.


Pure + Simple


Automatically manages critical spa functions such as filtration, heating and self-diagnostic programs so you can relax more.

  • Reminds you of when it is time to clean filter or change water
  • Allows personalized settings to suit your spa usage and lifestyle
  • Scrolling message display is large and easy to understand


This proprietary cartridge leaves your water sparkling clean and feeling soft while significantly reducing chemical maintenance.
  • Kills 99% bacteria on contact
  • Cartridge lasts up to 6 months
  • Minimizes chlorine usage
  • Reduces skin and eye irritation

Smart + Reliable


Its elegant, white textured surface is soft on your skin yet tough enough to outlast any other spa shell material.
  • Lifetime Warranty
  • Fade-resistant for long-term beauty
  • Slip-resistant for safety
  • Maintenance-free
  • Ideal for optimal nighttime illumination


Rugged and durable, its all-weather exterior will retain its beauty for many years to come.
  • Stain and fade resistant
  • No painting or staining required
  • 100% recycled plastic (HDPE)
  • Environmentally-friendly material
  • 5-year warranty


The most durable and reliable spa heater on the market.
  • 5-Year Unconditional Warranty
  • High-flow design prohibits harmful mineral build-up
  • Stainless steel, no-weld construction for longer life
  • Large surface area and low density lowers heat costs
  • Smart Heat: variable output provides optimal heat recovery and lower energy consumption


D1 Spas are 100% foam insulated with closed-cell urethane like commercial freezers to minimize heat loss and ensure the lowest energy costs possible.
  • Multi-density provides added structural integrity
  • Encapsulates plumbing to prevent leaks
  • Absorbs equipment noise for quiet operation
  • E.P.A compliant material

Curvilinear Design

Sensuous design and wrap-around hydrotherapy. An exquisite balance of performance and style, The Bay Collection soothes the body while it relaxes the mind. As discerning as their owners, these elegant spas deliver the ultimate in indulgence and satisfaction through the careful execution of our patented curvilinear design.

Ultimate + Comfort


D1 has studied human anatomy, ergononmics, fluid mechanics, aquatic massage, acupressure, and reflexology so extensively we actually invented a new science; we call it “hydronomics.” Using state-of-the-art modeling software, D1 engineers design our hot tubs in virtual space, which ensures the ultimate in comfort.


The culmination of hydronomics can be experienced in our BioForm Seating.

  • Non-float seating designs
  • Optimized body positioning
  • Full body immersion
  • Ideal jet and control placement
  • Correct size and type of jets


The first and only height-adjustable neck jet pillow.

  • Patented design provides the ultimate in comfort
  • 5 height positions allows for a wide range of users
  • Curved pillow cradles your neck
  • Up to 3 adjustable jets 


This “Spa-within-a-spa” provides the ultimate in full-body hydrotherapy from head-to-toe.

  • No-float design
  • Sculpted leg contours for superior fit
  • Tactile Therapy for wrists and hands


D1’s interior features are designed to bring you the ultimate in comfort, therapy, and convenience. Turn on your jets without having to leave your seat, and enjoy a luxurious hydrotherapy massage that targets the most common aching muscles.










World + Class

Indulge in the ultimate relaxation experience with D1 hot tubs. These luxurious spa products are unlike any other thanks to their World + Class Innovation and ingenuity. Each hot tub is designed with exceptional attention to detail and craftsmanship, ensuring the highest quality product for ultimate satisfaction. What’s more, the team behind D1 is constantly pushing the boundaries of spa design and functionality, creating a unique offering that stands out from the rest. Whether you’re looking to unwind after a long day at work or entertain guests, D1 hot tubs are the perfect addition to any backyard oasis. Experience the ultimate in comfort and luxury with D1 hot tubs, and you’ll never want to settle for anything less.