Harmonic Hot Tubs · Harmonic 5–10 Seater Collection
Harmonic H28RB
A round 8-seat spa with 76 jets and an open, social layout for families and groups.
- 8seats
- 76jets
- 400 galwater
- 93" round x 40"L × W × H
- 2 high-performance jet pumps and 4 elegant laminar jets.
- Equipped with a touchscreen keypad and vibrant LED lighting.
- Built-in ozone sanitation and Anti Microbial filtration.
About the H28RB
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, Anti Microbial filtration, and vibrant LED lighting, it’s the perfect blend of performance and ambiance.
Delivered and installed by us
We check the path to your backyard and the base, deliver and set the tub (by crane if needed), coordinate the electrical and do the first fill and start-up. Later we service and repair it too.
How installation worksSpecifications
| Seating | 8 Seats |
|---|---|
| Dimensions | 93" round x 40" |
| Water volume | 400 gal / 1,515 ltrs |
| Total jets | 76 |
| Dry weight | 870 lbs / 395 kg |
| Filled weight | 4,206 lbs / 1,909 kg |
| Electrical | US 240v / EU 230v |
| Power type | Standard (240V) |
| Seating style | Open seating |
| Controls | Touchscreen |
| Heater | US 4kW / UK/EU 3kW |
| Exterior Lighting | 4 |
| Interior Lighting | 12 |
| Ozone & Chamber | Yes |
| Filtration | 1 Anti Microbial Filter |
| Pump | US (1) 4 hp 2 spd & (1) 4hp 1 spd / UK (1) 3 hp 2 spd & (1) 3 hp 1 spd |
| Turbo Boost | 10 |
| Turbo Boost Controls | 2 |
| LED Waterfall | No |
| LED Laminar Jets | 4 |
| Acrylic Options | Alabaster Wave, Silver Marble, Sahara, Pearl, Espresso, Ocean Wave, Pewter |
| Exterior Cabinet | Standard: Coastal or Ebony HDPE |
| Cover | PolyTek |
Part of: Harmonic 5–10 Seater Collection
Let’s talk about your pool
Free estimates across the Birmingham metro. Tell us what you have in mind and we will come out, measure and give you a straight price.