Premium Range

Onyx Hot Tub

Name: Onyx Hot Tub | 5 Person Hot Tub | PS
SKU: OX-V3
Price: 9999.00 GBP
Availability: InStock
Rating: 4.64 (11 reviews)

Sleek and Powerful Performance

(11 customer reviews)

AED 53,895.10

The Onyx hot tub, winner of the WhatSpa? Best Buy Award 2025, is one of the most powerful models in the Platinum Spas Premium Range, with 90 jets powered by 4 x 2 HP pumps, creating exceptional hydrotherapy. Its Superior Aristech Acrylic shell comes in 3 colours, Midnight Canyon, Sterling Silver an… [Read More]

Dimensions:2,200 x 2,200 x 940 mm

5 People

90 Jets

40 Amps

Choose Shell Colour	Midnight Canyon Odyssey Sterling Silver

Includes Heat Pump

Balboa Clim8zone II Mini 4kW

Cutting-edge heat pump designed for efficient heating and cooling of spa systems

Enquire Now Find your nearest showroom Need advice? Speak to expert

Product Details

The Onyx hot tub has a slightly different shape to most of the Platinum Spas Premium range, featuring more modern, angled and sharper corners, making it a great choice for contemporary gardens.

Its two-lounger layout makes it a great option if you want your spa to become a dedicated part of your routine. By using the loungers, you’ll get hydrotherapy massage jets directly targeting your back, shoulders, legs and feet all at once. All you have to do is lie back and enjoy.

It features an integrated Bluetooth sound system and is compatible with a Wi-Fi app–based remote control (the Balboa Wi-Fi module can be purchased separately). This makes it an excellent choice for busy family homes, entertaining friends, or a more streamlined solo relaxation experience.

To learn more about this 5 person hot tub, contact the Platinum Spas team, who will be happy to answer your questions!

Why Choose An Onyx Hot Tub?

For years, Platinum Spas has focused on designing hot tubs that owners genuinely love. Every model is built to deliver outstanding hydrotherapy while remaining efficient, reliable and easy to own.

Trusted worldwide, every model is engineered with comfort, efficiency and reliability in mind. The Onyx brings these qualities together in a spa that’s designed to perform just as well in everyday use as it does on the showroom floor.

Premium Water Care

Clean water is essential to every enjoyable hot tub experience. The Onyx hot tub features Platinum Superior-Zone, our patented ozone sanitation system, which helps maintain water quality while reducing the amount of chemicals required.

Energy-Efficient All Year Round

This 5 person hot tub model is equipped with Platinum Premium Shield Thermal Panels, working alongside a thermo-wrap lining to retain heat more effectively and reduce energy consumption. Better insulation means lower running costs throughout the year.

Designed for Everyday Comfort

The combination of upright seats and two full-length loungers makes the Onyx suitable for a variety of bathing styles. Whether you’re sharing the spa with family or stretching out in a lounger after a workout, every seat has been designed to deliver effective hydrotherapy and lasting comfort.

Powerful Hydrotherapy Jets

The Onyx combines rotating and directional jets to deliver a varied hydrotherapy experience. Each seat delivers a different massage profile, helping to ease muscle tension, improve relaxation, and provide targeted relief exactly where you need it.

Platinum Melody Immersive Sound

Enjoy your favourite music while you relax with the Platinum Melody sound system. Seamlessly stream music from your preferred device and enjoy rich, room-filling sound that helps create the perfect atmosphere, whether you're unwinding alone or entertaining guests.

World-Leading Aristech Acrylic

Every Platinum Spa is finished with industry-leading Aristech acrylic, chosen for its exceptional strength and long-lasting appearance. Its high-gloss surface is designed to resist fading and everyday wear, ensuring your spa consistently looks its best.

LED Lighting Effects

Transform the ambience of your spa with integrated LED lighting. Whether you prefer subtle illumination for a peaceful evening or vibrant colours for social occasions, you can create the mood exactly as you want.

Intuitive Touchscreen Control

Managing your hot tub couldn't be easier. The intuitive touchscreen control panel gives you quick access to key functions, allowing you to adjust temperature, jet performance, and lighting with just a few simple taps.

Signature Water Features

The finishing touches make every soak even more enjoyable. Illuminated waterfalls create a calming focal point, while integrated drink holders and premium-branded headrests ensure every soak feels as luxurious as it is relaxing.

Platinum Premium Shield Thermal Panels

Engineered to improve efficiency, Platinum Premium Shield Thermal Panels help minimise heat loss by working alongside the spa's thermo-wrap insulation. This advanced thermal protection reduces energy consumption, helping to lower running costs while keeping your spa ready to enjoy throughout the year.

Technical Specification

Metric Imperial

People:

Seats:

Loungers:

Jets:

Dimensions:

2,200 x 2,200 x 940 mm

Dry Weight:

490 kg

Heater:

3 kw

Filters required SS01 x 2

The Onyx hot tub has 90 jets in total

2 x 7-inch massage jets
10 x 5-inch massage jets
8 x 3.5-inch massage jets
70 x 2-inch massage jets

A blend of rotating and directional jets provides both deep-tissue relief and gentle muscle relaxation. Rotating jets help ease stubborn knots and back tension, while directional jets deliver a softer massage that's perfect for soothing tired muscles.

Download Spec Sheet

Night

Superior Warranty Platinum Promise

Our Platinum Spas warranty is one of the most comprehensive in the industry. We pride ourselves on the quality of our products and our after care service.

Lifetime warranty on the shell structure

Up to 3 years on parts

Real Customer installs

Callum Varga - 26/12/2024

★ ★ ★ ★ ★

Sofia Lennox - 24/11/2023

★ ★ ★ ★ ★

Mateo Blanchard - 29/10/2023

★ ★ ★ ★ ★

Clara Hensley - 01/09/2023

★ ★ ★ ★ ★

Lily Chang - 20/08/2023

★ ★ ★ ★ ★

Megan Thompson - 15/03/2023

★ ★ ★ ★ ★

Jakub Novak - 31/01/2023

★ ★ ★ ★ ★

Talia Whitaker - 15/01/2023

★ ★ ★ ★ ★

Dorian Lefevre - 29/10/2022

★ ★ ★ ★ ★

Elsa Monroe - 04/12/2021

★ ★ ★ ★ ★

Onyx Hot Tub - FAQs

Purchasing your Onyx hot tub is easy, thanks to our find a showroom tool. Simply enter your postcode or town/city, and we’ll show which of our partner showrooms are closest to you!

Your local retailer will then arrange your purchase, along with your delivery and installation, keeping everything in one place with one trusted supplier. What could be easier?

They’ll also be on hand to answer any questions you have. You can also contact us directly, and a member of the expert Platinum Spas team will happily answer any queries before or after your purchase.

Yes, in fact, it’s ideal for couples because it eliminates arguments over who gets to use the lounger seat! Although the Onyx seats up to five people, its two full-length loungers make it a great choice for couples. Both loungers provide a full-body hydrotherapy massage, allowing two people to enjoy the spa at the same time without compromising on comfort.

The additional seats make the Onyx ideal for families or entertaining guests, giving you the flexibility to enjoy the spa however you choose. If they’re really lucky, you might even let them use a lounger.

A 5 person hot tub is ideal if you want plenty of seating space, without the footprint needed for a large 6-7 seater. Whether your garden is big enough depends not only on the space you have for the hot tub itself, but also on the access routes and space you’ll have clear around the hot tub for maintenance access (this usually requires at least 30cm of additional clearance).

Measure your space before purchasing your hot tub to avoid disappointments upon arrival. Need help? You could benefit from a Platinum Spas Free Home Survey. A member of our team will come to you and professionally measure your space, giving you plenty of inspiration for models that will fit perfectly.

For more assistance with garden suitability, contact us today, and we’ll be happy to assist.

How often you'll need a new filter depends on how frequently you use your hot tub, how well the water is maintained and the condition of the existing filter. Regular filter maintenance is essential for keeping your Onyx hot tub performing at its best.

While it should be cleaned regularly, it will also need replacing from time to time as it wears over time. Replacing it at the recommended intervals will help maintain water quality, improve circulation and keep your hydrotherapy system running efficiently.

For more advice, read our guide: How Long Do Hot Tub Filters Last?

Every Onyx hot tub is backed by the Platinum Promise, giving you added confidence in the quality and durability of your investment. This includes a lifetime warranty on the shell structure, along with warranties on selected components, so you can enjoy complete peace of mind from the day your spa is installed.

View the warranty for your country to find out more.

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