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The Bestway® Hydrium™ 18ft Steel Wall Pool Set is designed for families who want a proper, semi-permanent pool without the cost or commitment of an in-ground build. The entire structure, including the walls, top ledge, and frame, is constructed from 100% galvanised steel, finished with a protective zinc coating to guard against rust and weather-related damage. This is a pool that earns its place in your back garden year after year.
Most above ground pools are a strictly seasonal affair, but the Hydrium™ is a different beast entirely. The Polar-Shield™ liner enhancements are specifically designed to withstand colder temperatures, meaning you can leave the pool standing all year long without worrying about cracking or deterioration. No more annual assembly and disassembly headaches. Set it up once and enjoy it whenever the mood (or the weather) takes you.
The FastLatch™ system does away with the usual bag of bolts and confusing instruction sheets. Instead, the two ends of the wall panel simply connect together and are secured with a single sturdy pole. With two or three pairs of hands, the frame and liner can be fully assembled in under 2.5 hours. A unique steel ridge design along the pool wall adds extra rigidity once everything is in place, giving the structure the kind of dependable support you would expect from a semi-permanent installation.
Looks matter, and the Hydrium™ delivers on both sides of the wall. The outer wall features an embossed, textured grey print that gives the pool a premium, considered aesthetic in your back garden. Inside, the Wavescape™ liner brings a rich blue, textured finish to the water, creating that clean, inviting look you want from a family pool. The UV-resistant PVC liner coating ensures the colour stays vivid and the material remains crack-free even after long stretches of direct sunlight.
Keeping the water clean is straightforward with the included sand filter pump, which runs at a pump flow rate of 6,056 L/h (1,600 gal/h). The system uses 250 g of Polysphere™ filtration balls instead of traditional sand, offering efficient, low-maintenance filtration. An integrated surface skimmer works continuously alongside the pump to remove floating debris before it settles, while the ChemConnect® dispenser maintains a steady chlorine level throughout the pool so the water is always ready for a swim.
Please contact us to ask any questions you might have so we can help you choose the right pool.
FREE DELIVERY
This item is despatched free of charge to most parts of England and Wales, and some parts of Scotland. Some remote areas will have a delivery surcharge (e.g Scottish Highlands, Isle of Wight, etc) added automatically during checkout.
If you are ordering from the Channel Islands, e.g. Jersey or Guernsey, please contact us before placing your order to get a delivery quote.
Please note that during busy times and over holidays, delivery may not be next day.
We're sorry we can't ship directly to the rest of the world but we are happy to liaise with a UK freight forwarder to arrange delivery overseas. To do this simply enter your freight forwarder's details in the delivery address at checkout. If you have any queries please contact us.
Please note these goods are very heavy and so will be delivered on a wooden pallet on a kerbside service. The carrier will deliver to your front door if they can use a pallet truck. Gravel drives may prevent this so please contact us if you have any concerns about delivery.
Please see our full returns policy here.
Frame Warranty: 2 Years
Pump Warranty: 1 Year
Liner Warranty: 1 Year
Hose Warranty: TBC
Bestway pools are renowned for their exceptional quality and cutting-edge technology, ensuring a reliable and enjoyable swimming experience. With a wide range of pools available, Bestway provides the perfect solution to transform your outdoor space into a refreshing oasis.
Bestway continues to lead the industry in design and technology, investing heavily in Research & Development to ensure their pools meet the highest standards. From the durable Tritech™ liner to the practical ClickConnect™ frame system, Bestway pools offer premium features that enhance both longevity and convenience.
Built to last, Bestway pools are rigorously tested to withstand the elements and provide years of enjoyment. With high-quality materials and reinforced structures, these pools can endure tough weather conditions while maintaining their integrity and performance.
Bestway is committed to safety, with every pool conforming to the latest European Commission safety standards for domestic above-ground swimming pools. Their products are designed with safety in mind, ensuring peace of mind for all users.
With easy-to-use assembly systems, such as the ClickConnect™ frame, Bestway pools can be set up quickly and efficiently, allowing you to enjoy your pool without unnecessary hassle.
Bestway pools are built with the highest quality standards in mind, ensuring long-lasting durability and enjoyment. Backed by over 30 years of industry experience, Bestway pools are a reliable choice for any garden.
Key specifications for this pool
Water Depth (inches)
Pool Height (inches)
Pool Capacity at 90% (litres)
It's never been easier to upgrade your garden. Just follow these simple steps and get ready for years of fun.
Measure your area and choose from our curated range of top-brand pools designed to fit any garden size, shape, or budget.
Place your order securely and we’ll dispatch it within 24–48 hours with full tracking, so you never have to miss a sunny day.
Experience endless summer memories in your own garden in just a few hours, without the stress of complicated assembly.
Be Heatwave Ready ☀️
A highly durable year-round family-sized outdoor pool with corrosion-resistant steel walls.
Polar Shield™ protection lets you enjoy your pool all year round, even through cold weather, without worry of damage or wear.
The Ultimate Garden Upgrade ⭐️
The FastLatch™ system connects panels securely in under two hours using only basic tools, saving time and effort.
