Harmonic Hot Tubs™ H28RB Vintage Hot Tub

Sean Breen was great to work with at Napa Hot Tubs. No high pressure sales, just honest and very helpful. We looked at many other hot tubs and kept coming back to Marquis. We are very satisfied and would recommend Napa Hot Tubs 100%!

Ashley Brandner

Just wanted to say the Covana top we got with our hot tub is the best investment we ever made. Such a labor saver and we use our hot tub every single day.

Eric Freeman

I am extremely happy with the service I received when my older hot tub had an error message. I walked in and asked for advice and for parts and they were extremely knowledgeable and steered me in the right direction and I was back up and running in no time!

Sandy Barta

I had to replace my hot tub in a hurry, and Sean was an absolute pleasure to deal with! He did exactly as promised, and delivered and installed a new ot tub in record time. I couldn't be happier with service!

M V

We live well out of the range but yet NVHT has always worked with us from installing our new hot tub and covanna cover to getting items for repair and maintenance. Excellent service from owner to installation crew.

Eric Freeman

Fantastic experience with the Napa Valley Hot Tubs team. I spoke to them on a Tuesday and by Saturday I had a fully installed hot tub. They arranged the electrician and handled everything. I would recommend them to anyone.

Sam Lambert

Description

The H28RB is a round 8-seat spa with 76 jets, including 10 TurboBoost Jets. Its circular design creates an open, social layout while delivering powerful hydrotherapy for families or groups. The H28RB Hot Tub combines style, comfort, and performance in a unique round design. With 8 thoughtfully positioned seats and 76 jets—including 10 TurboBoost Jets—this spa delivers a powerful and balanced hydrotherapy experience for groups or families. Its round shape creates a more social, open layout while maintaining premium features. Equipped with a touchscreen keypad, 2 high-performance jet pumps, and 4 elegant laminar jets, the H28RB is as visually striking as it is functional. The interior features a durable acrylic/fiberglass shell, while the HDPE synthetic cabinet provides long-lasting protection. With built-in ozone sanitation, Silver Ion mineral filtration, and vibrant LED lighting, it’s the perfect blend of performance and ambiance.

Manufacturer Info

Measurements	93” round x 40” high
Dry Weight	770 lbs
Electrical Requirements	220v 30/50 amp
Water Capacity	400 gal
Unique Seats	8
Total Jets	76
LED Turbo Boost Jets	10
Lighting	2-5” LED Lights + 10 TurboBoost Lights
Turbo Boost Control	2
Pumps	2-4hp/1&2 spd
Top Side Control	Touchscreen
Shell	Acrylic/Fiberglass
Acrylic Color Options	Alabaster Wave, Silver Marble, Sahara, Pearl, Espresso, Ocean Wave, Pewter
Cabinet	Tricorn Black, Dark Grey, Hawthorne or Natural
Filtration	1 Micro Screen with Silver Ion Minerals
Ozone/Chamber	Yes
Spa Cover	PolyTek

Color Options:

Vintage Finish Options

Tricorn Black
Dark Grey
Hawthorne
Natural
Black
Gray

Shell

Alabaster Wave
Espresso
Silver Marble
Ocean Wave
Sahara
Pewter
Pearl

Features:

Turbo Boost Whirlpool System

Multi-sized jets target different muscles
Swirling motion + heat + pressure
Various switchable modes

Harmonic LED Illumination

Evening-ready illumination settings
Backlit controls for effortless navigation
Enhances mood and safety with lighting

Harmonic Balance Water Management System

Automatic filtration twice daily
Fresher water with less maintenance
Filters debris and bacteria

Low-Profile Delta Hydrotherapy Jets

Spa-like experience to reduce stress
Precise pressure control for deep relief
Full-body hydrotherapy massage

Frame Built For Durability

15-ply cross-laminated frame for unmatched support
High-density foam for stability & insulation
Full-circumference: interlocking design built with 2” dimensional lumber

Heavy Duty Cabinet

Weather-resistant HDPE cabinets
Sleek design complements for any setting
Reflects your personal space & style

Stylish Color Options

All elegant shell color options
Complements any backyard aesthetic
Durable finishes that stay vibrant over time
Lets you personalize your hot tub to your style

Features

Ozonator
Locking Cover
Touchscreen Control
Laminars (Water Ropes)
Bench Seating
Made in USA

Downloads

Specifications

Type: Hot Tubs
Max Jets: 76
Number of Pumps: 2
Total Pump Horsepower: 8.00 HP
Seats: Up to 8 Adults
Holds: 400.00 Gallons
Filled Weight: 4206 Pounds
Dry Weight: 870 Pounds
Length: 93.00"
Height: 40.00"
Width: 93.00"
Shape: Circle

Ashley Brandner

Just wanted to say the Covana top we got with our hot tub is the best investment we ever made. Such a labor saver and we use our hot tub every single day.