Description
Sunbeach Spas 9120-S: The Ultimate 12-Seater Party Hot Tub
If you have been searching for a genuine 12 seats hot tub built for large family celebrations, social garden parties, and year-round relaxation, the Sunbeach Spas 9120-S delivers the space, comfort, and premium performance you need. This large party spa features a spacious, barrier-free all-seater layout that lets up to 12 adults sit face-to-face comfortably without crowding the central footwell.
Finished in a premium Silver White Marble USA Aristech Acrylic shell paired with a sleek JnJ Grey cabinet, it serves as an attractive centerpiece for your private wellness retreat or outdoor entertainment space.
High-Output Performance & Hydrotherapy Benefits
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Powerful Multi-Pump Massage System: To ensure consistent water pressure across all 12 seats, this model features two independent, high-output 2 x 3hp hydro-massage pumps, a 1 x 0.35hp high-flow filtration pump, and a separate 1 x 0.35hp fountain pump.
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62-Jet Targeted Deep Tissue Relief: The high-volume water pump system drives water through 62 carefully positioned hydro-massage jets to target muscle tension in your back and shoulders. A secondary system of 13 air massage jets provides a gentle, full-body bubbling effect that you can adjust using 3 air control valves and 1 main diverter valve.
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Efficient Balboa Heating: Equipped with an industry-leading Balboa 3kW heater (3000 Watts), the spa warms its water volume quickly and maintains your target temperature efficiently through cold winter nights.
Premium Garden Entertainment Features
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Immersive Bluetooth Hydro Sound: Connect your phone wirelessly to stream music directly through the built-in Hydro Sound stereo speakers and integrated subwoofer, bringing high-fidelity audio to your garden gatherings.
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Synchronized Color-Changing LED Lights: Set the perfect evening mood with a coordinated lighting layout featuring 32 water-level rail LEDs, a large underwater central LED light, illuminated cup holders, and RGB LED exterior corner cabinet panels.
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Soothing Water Features: Enjoy a built-in blade waterfall and two clear-stream pop-up fountain jets that create a peaceful, ambient soundscape for your evening soak.
Award-Winning R10Plus Energy Efficiency & Clean Water Care
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Low Running Costs: Heating a large hot tub in the UK climate requires smart insulation. This model features award-winning R10Plus insulation across all four side panels and its solid ABS base tray. This dense thermal shield traps ambient heat generated by the electric pump motors and recycles it back into the plumbing lines, lowering your daily energy bills.
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Automated Ozonator Water Sanitation: Keep your spa water crystal clear with minimal maintenance. The dedicated 0.35hp circulation pump moves water continuously through 2 high-efficiency cartridge filters while an integrated 50mg Ozonator Venturi sanitiser system injects natural ozone gas to neutralize bacteria, reducing the need for heavy chemical chlorination.
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Smart App Control: Use the responsive Balboa Spa Touch 4 touchscreen control panel or the built-in Balboa CMS Wi-Fi module to adjust filtration cycles, check the temperature, or preheat your spa directly from your smartphone.
The award-winning insulating method combines years of manufacturing excellence from Sunbeach. You’ll get some of the best insulation around and be able to keep the water hot for longer, saving you money in the long run.
Setting new industry standards for energy efficiency and performance. The proprietary R10 hot tub insulation has been recognised by industry experts WhatSpa and the UK Pool & Spa Awards for its outstanding performance. Earning multiple awards for its innovative design, energy efficiency, and sustainability. Fully TUV certified and approved.
Technical Specification Sheet
Direct technical data sourced from official manufacturer build standards.
| Technical Category | Engineering Component Specification Details |
| Physical Dimensions | 3000 x 2300 x 930 mm (Length x Width x Height) |
| Seating Layout | 12 Seats (Open Bench All-Seater Configuration) |
| Shell Material | Genuine USA Aristech® Acrylic (Silver White Marble) |
| Cabinet Construction | Weatherproof Synthetic Cabinet (JnJ Grey) |
| Power Supply Required | 32 Amp (Dedicated hardwired circuit mandatory) |
| Heater Assembly | Balboa 3kW (3000 Watts Output) |
| Control Infrastructure | Balboa Spa Touch 4 Touchscreen with CMS Wi-Fi Included |
| Hydro Massage Pumps | 2 × 3 hp High-Output Performance Pumps |
| Filtration Circulation | 1 × 0.35 hp Dedicated High-Flow Pump |
| Water Feature Supply | 1 × 0.35 hp Fountain Pump |
| Total Water Jets | 62 Hydrotherapy Water Jets |
| Total Air Jets | 13 Air Massage Jets |
| Filtration Setup | 2 × High-Efficiency Cartridge Filters |
| Water Sanitation | 1 × 50 mg Ozonator Venturi System |
| Cabinet Insulation | Award-Winning R10Plus Side Panel & Base Thermal Shield |
| Base Support Frame | Heavy-Duty Stainless Steel Frame with Solid ABS Base Tray |
| Audio Configuration | Bluetooth Hydro Sound System with Integrated Subwoofer |
| LED Lighting Matrix | 32 Rail LEDs, 1 Large Base LED, 2 Lit Cup Holders, Pro Light Corners (RGB) |
| Water Features | 1 × Built-in Blade Waterfall, 2 × Clear Stream Pop-up Fountains |
| Thermal Protection | 1 × 9120-S Fitted Grey Insulated Cover (2-piece, number-locking) |
| HSG282 Compliant | No (Engineered for domestic residential properties only) |












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