Harmonic H28RB Hot Tub

Seating: 8 unique seats

Size: 93" x 40"

Water Capacity: 400 gallons

Dry Weight: 870 lbs

Filled Weight: 4,206 lbs

Electrical: US 240V / 50 amp

Heater: US 4kW

Topside Control: Touchscreen

Exterior Lighting: 4 lights

Interior Lighting: 12 lights

Water Management: Ozone & Chamber system

Filtration: 1 Micro Screen filter with Silver Ion Minerals

Pump System: US (1) 4 hp 2-speed pump + (1) 4 hp 1-speed pump

Total Jets: 76

Turbo Boost: 10

Neck Jets: 0

Turbo Boost Controls: 2

Water Features: 4 LED laminar jets

Acrylic Options: Alabaster Wave, Silver Marble, Sahara, Pearl, Espresso, Ocean Wave, Pewter

Exterior Cabinet: Coastal or Ebony, with vintage options available

Cover: PolyTek

Use the touchscreen controls to set your preferred temperature, lighting, and jet settings. Allow the spa to heat fully before entering, then enjoy the seating layout for social soaking, relaxation, or light hydrotherapy. Keep water balanced, maintain filtration, and use the cover when the tub is not in use.

The H28RB is a strong option for customers who want a high-capacity hot tub with a more unique visual style. The round layout encourages conversation and group use, while the 76 jets, 10 Turbo Boost jets, interior/exterior lighting, and LED laminar jets add a polished spa experience. This model is especially good for buyers who care about both performance and backyard design.