Michael Phelps Legend Series Hot Tubs logo.
Master Crafted, legendary reputation Master Spas construction cutaway illustration.

How we create
a Legend

At Master Spas, we have worked for over 35 years to perfect your spa experience. We’re proud to say that all our spas are made in the USA and each design is master-crafted to achieve enhanced, innovative therapy and high-tech advancements in insulation, filtration and heating systems. Here are a few of the proprietary features that distinguish Master Spas as a leader in spa design, construction, and performance:

Exclusive Mold resistant coated wood frame a heavy-duty 2x4 engineered frame that is coated to reduce moisture absorption.

Fiberglass reinforced billets give the frame’s top flange greater strength.

Vac formed ABS pan bottom finishes the frame with a vac formed, high density polymer base that helps keep the heat in and unwanted pests out.

Manifold plumbing system ensures that pressure is distributed equally among the spa’s jets.

Exclusive Noise Reduction System is a result of advanced engineering innovation that reduces pump and motor vibration by 150% over the industry standard mounting system.

Environmentally-friendly Icynene Foam Insulation makes a Master Spa one of the most energy-efficient spas in the industry. It also helps support the weight of the plumbing in the spa. Master spas are certified to the California Energy Commission (CEC) as meeting Title 20 requirements.

Exclusive Mast3rpur™ Water Management system provides radically clean spa water in an environmentally friendly way using a synergistic blend of three proven natural sanitizers, including our patented EcoPur® Water Filtration System.

DuraMaster Premium™ Skirting is made of high-impact, weatherable polymer. It features authentic wood grain patterns randomly etched into the polymer for a rich, three-dimensional look. It’s easy to maintain with a cloth and garden hose with virtually no fading or color change. The skirting is so durable, that it comes with a lifetime warranty.