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Our Manufacturers

When you are the worlds biggest single retail outlet of hot tubs you want to make sure you have the worlds best manufacturers building your products. That's exactly what we have here at The Hot Tub Superstore. Read on to learn all about our manufacturers.

Master Spas Manufacturer

The Master Spas manufacturing plant in Fort Wayne, Indiana..

About Master Spas

Master Spas is based in Fort Wayne, Indiana, 90 miles north of Indianapolis. Operating out of a state-of-the-art 27 acre manufacturing campus, they are the largest swim spa manufacturer in the world, and one of the largest portable spa and hot tub manufacturers in the USA. The management team has over 100 years of spa manufacturing success, and one of the strongest track records in the industry.

Master Spas are exclusively available in the UK through The Hot Tub Superstore.

About Master Spas

Master Spas are one of the world’s largest hot tub manufacturers, based in Fort Wayne, Indiana, USA. Operating from their 27 acre, purpose-built production plant, Master Spas produce high quality hot tubs using progressive, efficient, state-of-the-art manufacturing systems to ensure the highest quality products.

Master Spas are the largest swim spa producer; they are the only swim spa manufacturer worldwide with a dedicated production line and over 30 specialist swim spa models. Endorsed by the most decorated Olympian of all time, Michael Phelps, Master Spas swim spas combine static swim technology with ultimate therapy.


Aside from the guarantee of quality, Master Spas are also pioneers in hot tub efficiency. Using their own in-house thermal testing chamber, models are rigorously tested in a variety of simulated environments to feedback reliable data; thermal data is used to improve efficiency and ultimately, running costs.

Watkins Hot Tub Manufacturer

Watkins Manufacturing is the world’s leading producer of hot tubs/spas.

At Watkins, customers matter.

Watkins hot tubs help people relax, connect with loved ones, and live healthier, happier lives. Offering exceptional home-relaxation and aquatic fitness products that improve people’s lives.

The Watkins leadership team has received consistently high marks for being approachable, transparent, and ethical.

Innovation – Leading the industry with unique and compelling customer solutions
Quality – Consistently delivering product and service excellence
Stability – Watkins Manufacturing Corporation is part of MASCO, a Fortune 500 company whose family of quality home products include Delta® faucets, Behr® paint, and KraftMaid® cabinets.
Passion – We are committed to providing “The Absolute Best Hot Tub Ownership Experience®”

At Watkins, communities matter.

Watkins don’t just work in the community, they help nurture and strengthen it. Watkins is proud to support numerous local charities like Solutions for Change, Boys & Girls Club of Vista, the Vista Firefighters Association, and many more.

Watkins History

Watkins are forward-thinkers with a long history of developing innovative features and technologies that are now the standard for the industry. Here’s how they began and how they got to where they are today:

1977 Jeff and Jon Watkins build their first portable spa
1978 Watkins begins its history of industry firsts, such as full insulation, underwater lighting, and top-loading filters
1984 Watkins introduces Moto-Massage®, the industry’s first moving jet; introduces the first hot tubs in Europe
1986 Watkins joins the MASCO family of home products
1996 Watkins opens first of two manufacturing plants in Tijuana, Mexico
1997 Jeff Watkins retires, Steve Hammock becomes President of Watkins Manufacturing
1998 Watkins earns ISO 9001 certification and passes $100 million in annual sales
2004 Watkins receives MASCO’s Platinum Safety Award, Innovation Award for the SpaAudio music system.
2011 Watkins produces its one millionth spa
2013 Watkins recognized as UT San Diego Top Workplace

One million spas and counting

Watkins Manufacturing is the global hot tub leader and has built more than one million hot tubs. The unmatched experience of Watkins Manufacturing means unsurpassed quality and long-term reliability for you and your family.