Description
The 551-L is a premium, square acrylic spa designed to balance social seating with targeted muscle recovery. Measuring 2120mm x 2120mm, this hot tub fits comfortably onto standard garden patios and decking layouts while offering a spacious interior. The versatile seating layout accommodates 5 to 6 people, providing one molded, full-length lounger for full-body hydrotherapy alongside five upright seats for family and guests.
Electrical Power & Heating Specifications
When choosing a garden spa, understanding electrical requirements and power consumption is essential. The 551-L offers flexible installation paths to suit your home infrastructure:
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Dual-Amp Compatibility: This model can be configured to run on a standard 13-Amp outdoor domestic socket for an easier initial setup, or hardwired directly to a dedicated 20-Amp supply by a certified electrician for optimized performance.
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Heater Wattage: The system is equipped with a high-efficiency 2 kW (2000 Watts) Balboa heater pack. This ensures consistent water temperature retention through colder autumn and winter evenings.
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Pumping System: Hydrotherapy pressure is driven by a heavy-duty 3hp (horsepower) massage pump, while day-to-day water filtration is handled independently by a quiet, low-wattage 0.35hp high-flow circulation pump to keep daily electricity costs low.
Hydrotherapy & Shell Construction
The interior shell is manufactured from genuine Aristech Acrylic (available in Silver White or Odyssey Grey), a durable material selected for its resistance to scratching and UV fading over time.
The spa features 28 directional hydro-massage jets arranged in targeted clusters to relieve tension across your neck, back, shoulders, and legs. Unlike mass-market inflatable options that rely on cooling air bubbles, the 551-L uses pressurized warm water streams to deliver effective deep-tissue massage pressure.
Advanced R10 Insulation & Water Care
Built explicitly for the UK climate, the 551-L is equipped with our award-winning, TÜV-certified R10 side panel and base insulation system. This dense thermal barrier traps heat inside the cabinet structure and recycles ambient heat generated by the pumps, significantly reducing the energy required to keep your 1400-litre water capacity at temperature.
For straightforward water maintenance, the spa utilizes a dual-action sanitation process:
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Ozone Venturi Sanitizer: A built-in 50mg Ozonator automatically injects ozone gas into the water line to break down bacteria, reducing your overall reliance on chemical chlorine or bromine.
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High-Efficiency Filtration: Dual high-flow filters continuously collect fine debris from the water column, driven by the dedicated, quiet 0.35hp circulation pump.
Premium Ambient Entertainment Features
The 551-L features a luxury ambiance package designed to enhance evening spa sessions:
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Chromatherapy Lighting: Includes multi-colored RGB LED lights tracking the internal waterline, a large main underwater light, and color-changing LED exterior corner lights on the side skirt.
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Hydrosound Bluetooth Audio: Features under-shell sound transducers that pass audio vibrations directly through the water, supported by an integrated subwoofer system for rich sound quality.
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Water Features: A built-in sheet-style blade waterfall adding a relaxing visual and acoustic backdrop.
Technical Specifications Table
| Specification Category | Factory Component Feature |
| Dimensions | 2120 x 2120 x 910 mm |
| Seating Layout | 1 Full-Length Lounger + 5 Upright Seats (5-6 Person) |
| Water Capacity | 1,400 Litres |
| Total Dry Weight | Approx. 350 kg |
| Power Supply | 13-Amp (Plug & Play) / 20-Amp Hardwired |
| Heater Unit | 2 kW (2000 Watts) Balboa Pack |
| Control Pack & Panel | Balboa BP200 with Balboa TP500 Touchpad |
| Massage Pump Array | 1 x 3hp Hydrotherapy Pump (28 Jets) |
| Filtration Pump | 1 x 0.35hp High-Flow Circulation Pump |
| Sanitation Support | 1 x 50mg Ozonator Venturi System + 2x Filters |
| Insulation Rating | TÜV-Certified R10 Side Panel & Base Barrier |
| Shell Material | Genuine Aristech Premium Acrylic (Silver White / Odyssey Grey) |
| Cabinet Skirt | Weatherproof Synthetic with LED Corner Lights & Logo |
| Audio Entertainment | Hydrosound Under-Shell Transducers + Subwoofer |
| WiFi Access | Optional Module Upgrade Available |
| Water Feature | Integrated LED Blade Waterfall |
| HSG282 Compliant | No (Designed for domestic residential use) |



















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