
Altai One zone · 4 m long
- Size: 400 x 228 x 135 cm (13′1″ x 7′6″ x 4′5″)
- 2 seats + 1 lounger
- 38 jets
- Empty weight 950 kg
A swim spa is decided by two numbers long before it is decided by taste: how long it is, and what it weighs. Below are all 23 models we deliver in Mallorca, with the verified length, width, height, empty weight and jet count for each one.
Almost every swim spa on this page is between 4 and 7.5 metres long and around 2.25 metres wide. That single fact rules out more terraces than any other consideration, which is why this page leads with the measurements rather than with the photographs.
For what a swim spa is, what one costs and how we install it, see the swim spa page. This page is the reference: the numbers you need in order to check a space, brief an architect or have a structural engineer look at a floor.
Where a figure is missing from a card, the manufacturer does not publish it and we have not invented one. Ask us and we will request it from the factory in writing.
Within each group the models run from shortest to longest. Every model stays on the page; the filter only changes what is shown.
A single basin. You swim against the current at one end and sit in the same water afterwards. Shorter, lighter and simpler than a two-zone model, and the sensible choice on most terraces.

















A swimming section and a separate wellness section, each with its own temperature. You can keep the massage side at 37°C while the swimming side stays cooler. More water, more weight, and a longer footprint.








Each card shows the empty weight of the shell as published by the manufacturer. A swim spa holds several thousand litres, so the filled weight is a multiple of that figure — which is exactly why the empty weight alone is not enough to judge a floor.
On a roof terrace, a balcony, or any floor with living space underneath, have the load checked by a structural engineer before ordering. An engineer works in kilograms per square metre rather than a single total. We supply the manufacturer figures in writing so that calculation can be made.
At ground level on a properly prepared base the weight is rarely the problem. Access usually is: a 7.5 metre shell has to reach the garden in one piece, and that is a crane question, not a spa question. We check it before anything is confirmed.

Length, width, and the route in. Send us photographs and rough measurements and we will tell you which models are realistic.
We check access, the base, the electrical supply and, where relevant, crane logistics before anything is confirmed.
One price covering the swim spa, delivery, installation and commissioning for your address.
We deliver, place, connect and hand over the swim spa in working order, and show you how to run it.

The advisor compares your space, intended use and budget against the full range in about a minute.