Hot Tubs Master Crafted for Quality, Reliability and Innovation

Over the past 20 years, Master Spas has built a reputation for innovation that goes beyond just our products and features. The innovative spirit of Master Spas permeates every aspect of our company. Most importantly, our hot tubs and spas aren’t just “made,” they’re Master Crafted.

Every one of our hot tubs and swim spas are made in the USA. Each design is quality engineered to the highest standards and designed for quality and reliability. Our hot tubs have smart, innovative design features that deliver powerful, soothing hydrotherapy and enhanced relaxation. And then there are the Master Crafted advantages you don’t always see or think about—but make a huge difference. These include advanced hot tub insulation, filtration methods and heating systems, along with the extra steps that we take to ensure that our spas are easy to maintain and reliable, offering outstanding performance now and for years to come.

Quality Standards

At Master Spas, quality is more than just a 100-point, multi-part inspection process that includes water testing of every hot tub and spa. It’s more than the added cost of using only premium components from the industry’s most trusted suppliers. For us, quality is a way of life and a state of mind that is woven into everything we do.


The Master Crafted process starts long before manufacturing with our unique approach to design that ensures we understand our customers’ current and evolving needs. This knowledge allows us to design and innovate based on both existing and emerging needs, always staying one step ahead and bringing new advances to market first.

Master Crafted Advantages

Exclusive Icynene Foam Insulation

Our exclusive, environmentally friendly Icynene foam insulation forms a continuous thermal barrier and makes our hot tubs among the most energy-efficient spas on the market. Other advantages of Icynene foam insulation include:

  • Supports the weight of the hot tub plumbing
  • Expands to 100 times its volume in seconds to insulate and air-seal the spa
  • Eliminates cold spots and helps maintain a consistent, comfortable water temperature
  • Keeps cold air out, helping prevent condensation, which can lead to mold and mildew
  • No ozone-destroying gases or gas emission hazards
  • California Energy Commission (CEC) certified, meeting the Title 20 efficiency regulation

Exclusive DuraMaster Premium Hot Tub Cabinet

Our exclusive hot tub cabinet is made of high-impact, weather-resistant polymer. The authentic wood grain patterns are etched in for a rich, three-dimensional look. The material also ages well with virtually no fading or color change. Not only is it aesthetically pleasing and easy to maintain, it also comes with a lifetime warranty.

Coated Wood Frame

Every hot tub starts with a heavy-duty 2×4, engineered frame that is specially coated to reduce moisture absorption.

Vac-Formed ABS Pan Bottom

Our hot tub frames are further reinforced and protected with a vac-formed, high-density polymer base that is engineered to keep the heat in and unwanted pests and moisture out. A vac-formed pan bottom is standard on all Legend Series hot tubs and can be added as an option to most other models.

Fiberglass Reinforcements

Fiberglass reinforcements add strength and durability to the hot tub where the frame meets the acrylic shell. This reinforces the shell and helps prevent damage.

Manifold Plumbing System

We use a manifold hot tub plumbing system to ensure water pressure is equally distributed to the jets. In addition to supplying uniform water pressure, manifold systems offer better control over where the water is directed and are easier to repair than traditional hot tub plumbing systems.