Description
The Harmonic H28RB (Standard) combines round eight-seat seating plan, 76 jets and a sociable central layout. The product is specified at 93 × 40 × 40 (as listed) inches, with a listed water capacity of 400 gallons. Its hydrotherapy equipment includes 10 Turbo Boost jets. The model combines a weather-resistant Coastal or Ebony HDPE cabinet, acrylic/fiberglass shell and PolyTek cover. The technical specifications list 240V/50A power for the US market and 230V/32A for the UK/EU market. Water care includes one Silver Lining Micro Screen and an ozone system with chamber. Its touchscreen operates the spa, with 4 exterior lights and 12 interior lights. The specifications also list 4 LED laminar jets. Two pumps support multi-user hydrotherapy. Choose from Coastal, Ebony cabinet options and Alabaster Wave, Silver Marble, Sahara, Pearl, Espresso, Ocean Wave, Pewter shell colors. Pricing is available through a local dealer, not as a published numerical price.
Technical Specifications
- Model: H28RB (Standard)
- Spa type: Round standard
- Unique seats: 8
- Jets (overview): 76
- Jets (technical specifications): 76
- Dimensions (inches): 93 × 40 × 40 (as listed)
- Dimensions (centimeters): 236 × 102 × 102
- Water capacity (gallons): 400
- Water capacity (liters): 1515
- Dry weight (lb): 870
- Filled weight (lb): 4206
- Electrical – US: 240V / 50A
- Electrical – UK/EU: 230V / 32A
- Heater – US: 4 kW
- Heater – UK/EU: 3 kW
- Pump – US: (1) 4 HP 2-speed & (1) 4 HP 1-speed
- Pump – UK: (1) 3 HP 2-speed & (1) 3 HP 1-speed
- Topside control: Touchscreen
- Exterior lighting: 4
- Interior lighting: 12
- Ozone and chamber: Yes
- Filtration: (1) Silver Lining Micro Screen
- Turbo Boost: 10
- Neck jets: 0
- Turbo Boost controls: 2
- LED waterfall: No
- LED laminar jets: 4
- Shell construction: Acrylic/fiberglass shell
- Frame construction: Treated 2×4 construction (described on manufacturer page)
- Cabinet details: Coastal or Ebony HDPE
- Cover: PolyTek
Available Color Options
Cabinet colors: Coastal, Ebony
Shell colors: Alabaster Wave, Silver Marble, Sahara, Pearl, Espresso, Ocean Wave, Pewter
Pricing: Contact a local Harmonic Hot Tubs dealer for pricing and availability.
Specifications and finishes should be confirmed with the dealer before ordering.




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