GPM Hot Tubs
GPM Brands

Shaping the Future of Hydrotherapy, Sauna, and Home Wellness Worldwide.

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Celtic Hot Tubs
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About Us

Who Are We

GPM Brands is a vertically integrated manufacturer of premium hot tubs, swim spas, cold plunges, saunas, and home wellness products. Headquartered on a 50-acre manufacturing campus in Franklin, Kentucky, we bring together more than 450 years of combined industry experience with a forward-thinking approach to design, engineering, and product development.

Since launching in 2020, GPM has grown into a diverse family of wellness brands built around one shared purpose: creating thoughtfully designed, well-crafted products that help people relax, recover, and live well. As a dealer-direct company, we believe lasting success is built through strong relationships, dependable products, and the tools and support our retail partners need to grow.

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Experts at Wellness

We build wellness products. We support retail businesses. We grow together.

Built in Franklin, Kentucky

A vertically integrated campus bringing product development, manufacturing, and support together.

American Manufacturing & Product Development

Purposeful innovation, thoughtful engineering, and continuous product improvement.

Hydrotherapy + Sauna Wellness

A growing portfolio designed to help people relax, recover, and recharge.

North American Roots. Global Reach.

Supporting retailers across North America—and expanding around the world.

Combined Experience Of Over 450 Years In The Wellness Industry

What began at Pool & Spa Depot now drives GPM’s innovation.

Millennium Buying Group Member

Exclusive organization of pool, spa, and recreation retailers network.

Brands You Can Count On

From hot tubs and swim spas to cold plunges and saunas, GPM Brands delivers dependable wellness products built for relaxation, recovery, and performance.

State-of-the-art, USA-made hot tubs feature advanced hydrotherapy, LED lighting, and innovative water management.

Enjoy soothing hydromassage and Italian elegance with Treesse whirlpool spas. Ideal for any home, hotel, wellness or spa spaces.

Wellness at your fingertips. Thoughtfully designed hydrotherapy solutions that help your body thrive and recover fast. 

Step into your sauna and melt stress away. Every session is an invitation for you to slow down, recharge, and feel your best.
Celtic Hot Tubs

Hydromassage spas inspired by Celtic heritage and built with American engineering for total mind and body harmony.

Resort Hot Tubs™ turn any space into a retreat of wellness with elegant hot tubs for residential and hospitality spaces.

An elegant poolside spa built-in. The Shelf Lounger combines a tanning ledge, loungers, and spill-edge one seamless piece.
Expo Shows

Connecting With the Industry

GPM Brands is proud to take part in leading pool, spa, and wellness industry expos across the country. These events give us the chance to showcase our growing family of brands, connect with valued retail partners, explore new industry trends, and build relationships with professionals shaping the future of the industry.

For GPM Brands, these shows are an important opportunity to reconnect with our dealer network, introduce new products, and strengthen relationships throughout the pool and spa community. They’re more than just tradeshows—they’re where new ideas, strong partnerships, and real business opportunities come together.

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Las Vegas
2025
Atlantic City
2026
Our Awards

Recognized for Excellence

Trusted by Homeowners Across North America

Wellness Products That Earn Five-Star Reviews

I recently found & started visiting this premier hot tub manufacturer. I am thoroughly impressed with their facility, it’s impeccably clean, and the efficiency of their operations is outstanding. The staff members are great work and to collaborate with, making the entire experience enjoyable. Their product innovations and features truly stand out, they exceed expectations. I hope it takes a while for any competitor to try to catch up to their excellence.

Mark S

Probably one of my most pleasant experiences with a customer service representative was recently when I needed assistance to operate the keypad for the functions on the new Celtic hot tub I purchased. I called customer service and within seconds Darrin Jasgur greeted me. Darrin patiently walked me through how to operate the control panel. He did this with knowledge, patience, and courtesy. He then offered me his direct phone number to call in case I needed any other assistance. I am grateful for Darrin’s assistance and I highly recommend him to others.

Rick P

As an Authorized Dealer for Harmonic Hot Tubs, we couldn’t be more excited to offer this exceptional brand to our customers. Harmonic has elevated the hot tub experience with their commitment to quality, innovation, and customer satisfaction. As a dealer, we’ve seen firsthand the dedication Harmonic has to their customers. Their support and warranty programs give our clients peace of mind knowing that they are backed by a trusted, reliable brand. We are proud to carry Harmonic Hot Tubs and wholeheartedly recommend them to anyone seeking the ultimate in relaxation and quality.

Dan E

Impressive quality, top of the line hot tub and even better customer service. We purchased our Harmonic hot tub in December and have used it almost daily ever since. Great features, great price and something we will be able to enjoy for years to come. Even better, and almost unheard of nowadays, they have provided exceptional customer service. Best purchase we’ve made in quite some time!!

JM

The Harmonic Spa we purchased is amazing. The two speed motor adds plenty of pressure to work the neck and back. The lounge seat gives a full body massage. I had an issue with two jets, but they helped me with the jet setting to turn them on. I am very happy with our purchase!

Chuck B

Purchased a Harmonic Hot tub. Absolutely love it. Great massage for my lower back. I purchased the spa that has a non slip shell for safety. My salesperson was not pushy. Very informative. After lots of shopping around, I found the Harmonic Spas the best prices for the features you get. I highly recommend them.

Michael H

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GPM Hot Tubs
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Mailing Address

P.O. Box 999 La Vergne, TN 37086

Shipping Address

3100 Bowling Green Road Franklin, KY 42134

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