A Treesse tub in a hotel setting at dusk

Made in Italy · Since 1976

Premium Designer Hot Tubs & Spas

The patented Treesse Ghost System with concealed hydromassage jets and ambient lighting. Marc Sadler design from Nepi.

A family company from Nepi

Half a century under the same roof

Treesse is an Italian family company. Since 1976 it has done one and the same thing: turn the bathroom and the garden into places of real rest. It began with bathroom furniture, moved to tubs in the late eighties — still the core of the business — and then on to spa pools and shower systems. Through all of it, two things have not changed: the company is one hundred per cent Italian and it is run by the family. Every piece is made in its own plant in Nepi near Viterbo, north of Rome, and passes an individual final inspection before it ships.

1976Year founded
Nepi (VT)Own plant, Italy
4×Compasso d’Oro — Sadler
3Lines in the range
24Models

Technology

Invisible hydromassage

An ordinary spa pool gives itself away with holes. The Ghost System, a patent signed by Marc Sadler, pulls everything into a thin slot along the inner rim: jets, drain, LED lighting. The tub stays perfectly smooth. When the system starts, you do not see equipment — you see a line of light and water beginning to move.

A close-up of the rim of a Treesse tub — water disappearing into the thin perimeter slot — The rim up close — the water leaves through the perimeter slot, and there is not one opening on the surface.

Ghost vs Ghost Plus

Ghost hides the hydromassage in a thin perimeter slot; Ghost Plus adds larger-diameter jets into that same slot — a stronger massage, the same clean shape.

Hidden Energy
Micro-jets are lined up along the slot, across the whole length of the rim. You do not see them and you do not feel them under your back — you only feel a jet arriving from somewhere to the side.
Invisible Drain
The overflow trap is hidden in that same slot, so there is not a single opening on the surface of the tub. A palm running down the wall meets neither a grate nor a joint.
Water Waves
Air is added to the jet of water. The massage becomes softer and fuller — less like a hard jet, more like a wave that wraps around you and lets go.
All Around
Jets and light run along the entire perimeter, not just behind the seats. Wherever you sit, the massage and the colour arrive from every side with the same intensity.

Chromotherapy

Every colour of feeling good

The LED lighting is hidden in the slot as well. A thin blade of light comes out of it, colouring the water and shifting slowly. No spotlights, no visible source — only a glowing rim and water that changes with it.

Design

Marc Sadler for Treesse

A Frenchman born in Austria and trained at ENSAD in Paris, Marc Sadler has worked in France, the United States, Asia and Italy. He began his career with a material: in the early seventies he developed the first ski boot made of fully recyclable thermoplastic. The same logic — let the material solve the problem — drives his work for Treesse. He is a four-time winner of the Compasso d’Oro, the oldest European industrial design award, with four further honourable mentions from ADI. For Treesse he signs Ghost and Ghost Plus and the Aquarun counter-current pool, developed with fluid dynamics specialists from the University of Trieste.

Hide the engineering. Leave only the line of light.

The handwritten signature of Marc Sadler

Models

Three lines, 24 models

Ghost Plus, Ghost and Swim. Prices on request.

Ghost Plus

Invisible hydromassage, only stronger

Ghost Plus is Ghost with more power. Alongside the existing jets, larger ones also feed into the perimeter slot, so the massage is stronger — and the line stays clean. The engineering is hidden; all you see is a cut of light and the colour of the chromotherapy. Nine models, for two to seven people, square, rectangular and round. The patent is Treesse’s, the signature is Marc Sadler’s, the work is done in Nepi (Viterbo).

Ice: outer dimension 228 × 228 cm, basin 225 × 225 cm. Prices on request.

German Design Award 2025
Ice
228 × 228 × 95 cm5–6 people
The only one with a glass rim the water spills over; the cushions hide the controls and turn into seats.
Heaven
210 × 210 × 86 cm4–5 people
The seats sit lower so the water reaches your shoulders; the headrests are reworked for longer sittings.
Phantom
235 × 235 × 98 cm5–6 people
An infinity rim with a skimmer and a balance tank; it fills and empties automatically, with a level sensor.
Shadow
200 × 160 × 82 cm2–3 people
The smallest Ghost Plus: linear cuts of light on a small footprint, for a narrow corner of a terrace or bathroom.
Muse GP
280 × 235 × 98 cm6–7 people
The largest model in the line; an airpool in the seat and room for the whole group without a cramped layout.
Maya GP
260 × 205 × 95 cm5–6 people
An elongated rectangular form for spaces a square will not fit; recessed or above-ground installation.
New
Wave GP
235 × 235 × 98 cmcapacity not published
Ghost Plus with the most powerful additional jets in the line; the technical sheet has not been published yet.
New
Drip
220 × 220 × 90 cmcapacity not published
A monolithic, sculptural outer shell and the thinnest perimeter slot Ghost has had so far.
New
Abyss
Ø 210 × 90 cmcapacity not published
A round form with an off-centre basin; cushions and controls sit flush with the rim, without a single protrusion.

Ghost

The system that made hydromassage invisible

Ghost is the original: the patent that made jets, LEDs and the drain disappear into a thin perimeter slot. All that remains is a cut of light along the rim. The line has eleven models — five spa pools for five to seven people and six low tubs 66.5–70 cm high for one or two, made for the bathroom and the terrace. Design: Marc Sadler. Made in Nepi (Viterbo).

Soul Spa 120 and 150 are also available with a cover compartment, which adds 35 cm of width. Fusion Active 230: the pre-installation manual states 230 × 180 × 67 cm — we confirm the measurement before every quote. Prices on request.

Zen
280 × 235 × 85 cm5–6 people
The classic rectangle of the line; you choose between cartridge and sand filtration, and an airpool across the floor.
Zen Active
300 × 235 × 85 cm5–6 people
The longest pool in the line, with an overflow rim and a balance tank — the water stands right up to the edge.
Wave
235 × 235 × 98 cm5–6 people
A square format with 24 upper and 16 lower jets; upper chromotherapy comes as standard.
Muse
280 × 235 × 98 cm6–7 people
The largest capacity in the line; an extra set of eight jets and a seat airpool are optional.
Maya
260 × 205 × 95 cm5–6 people
A narrower rectangle for spaces the large models will not pass, with the same perimeter chromotherapy.
Soul Spa 120
195 × 120 × 70 cm1–2 people
It weighs 120 kg empty and 578 full — it gets onto balconies and upper floors where pools cannot.
Soul Spa 150
195 × 150 × 70 cm2 people
The wider Soul: two people sit face to face; an optional cover compartment is built into the tub.
Fusion Spa 200
Ø 200 × 67 cm2 people
The only round one in the line; the water spills over the whole hoop, filling and emptying automatically.
Fusion Spa 230
230 × 180 × 66,5 cm2 people
A thousand litres at just under 67 centimetres high — it recesses easily into a terrace deck.
Fusion Spa 231
230 × 150 × 67 cm2 people
The only elliptical shape: an oval basin in a rectangular frame softens a severe space.
Fusion Active 230
230 × 200 × 67 cm2 people
The basin appears to float above the overflow frame; chromotherapy and an ozonator come as standard.

Swim

Swimming on the spot, at home

Swim is the only Treesse line you actually swim in. Turbines and pumps create a counter-current so you swim on the spot, while the wellness zone sits right beside the swimming one. Unlike Ghost and Ghost Plus, here you are not only choosing a shape but the ratio of training to relaxation. Four models, built-in or freestanding, controlled over Wi-Fi.

Saint-Tropez: the technical sheet states a length of 599 cm — we confirm the measurement before installation. Forma 390: the collection overview states a width of 230 cm, the product page and printed catalogue 225 cm — we use 225 cm. The manufacturer has not yet published a technical sheet. Prices on request.

Aquarun
510 × 235 × 142 cmno seats — made for swimming
Developed with Marc Sadler and fluid dynamics specialists from the University of Trieste; a mirror on the floor guides the swimmer.
Saint-Tropez
596 × 228 × 137 cm9 seats + 1 lounger
The largest: 76 jets, separate swimming and spa zones, 7,600 litres of water.
Antibes
390 × 228 × 137 cm5 seats
A shorter version of the same two-zone split; 45 jets, with chromotherapy and aromatherapy as standard.
New
Forma 390
390 × 225 × 120 cm2 seats + swimming zone
Three counter-current jets and the lowest height in the line; adjustable water flow.

Why Treesse

What stands behind every tub

All under one roof.
Tubs and spa pools are made in the company’s own plant in Nepi, with no production in third countries, and every single piece gets a final inspection.
A patent, not a retrofit.
Ghost and Ghost Plus are internationally registered patents developed in house, not a cosmetic treatment applied to someone else’s product.
Materials that allow shapes.
Crystaltech and special resins make infinity rims, surfaces without visible joints and thin profiles possible — things ordinary acrylic simply will not take.
One design language.
Hot tubs, outdoor and recessed spa pools, counter-current swim pools and shower systems all come from the same catalogue and speak the same language.
Awarded and proven.
The ICE model holds a German Design Award 2025 and an Archiproducts Award, and Treesse equipment is installed in homes, hotels, wellness centres and on yachts.

A Treesse Big-Bang speaker on the ledge of a room opening onto a pool and the sea at dusk

Accessories

What goes around the tub

The tub is one piece; the space around it asks for a few more. Every accessory comes from the same catalogue and the same design language, so you cannot see where the tub ends.

Throne steps, modules A and B
Big-Bang Bose speaker, Ø 55 cm
Pneumatic lifter for the cover
Step-Box step in wood
Step-Rock step in 20 mm porcelain

BENT — PURE and CUBE

Square tubs under the BENT name

PURE and CUBE are two square hot tubs BENT offers under its own name — they do not come from the Treesse or Wellis catalogue and should not be confused with them. Both start from the same form: a white square of flat vertical surfaces with no visible equipment. What differs is how they meet the floor.

PURE 220 × 220 × 78 cm
A 220-centimetre square resolved as one solid volume. No legs, no plinth, no visible engineering — the white surfaces run straight to the floor. The only interruption is a narrow illuminated strip in the front face. The rim carries dark stone covers, and inside there are flat surfaces for lying down instead of moulded seats. The logic of a pool, not a tub. For interiors.
CUBE 231 × 231 × 78 cm (upper volume)
PURE is one block; CUBE is assembled from two. The white square of the tub is set into a lower, wider platform that forms a perimeter step around it — both an entrance and a bench. A shelf is built in along the rim. Chromotherapy colours both the water and the base, so at night the whole volume lifts off the floor. For interiors and covered terraces.

Full technical data and pricing on request.

A built-in Treesse mini pool at dusk, a bottle in a cooler and two glasses on the stone rim

Tell us the space. We will propose the model.

Treesse does not sell a tub — it sells a quiet half hour at the end of the day. As the partner for Croatia, BENT bazeni run the whole process: choosing the model for the space and the number of users, checking that the services are prepared, delivery, installation and servicing. Pricing follows the configuration and is sent on request. Send us the dimensions of the space and your idea.

Request a quote

Treesse catalogues — 10 PDFs

Premium Designer Hot Tubs & Spas

Half a century under the same roof

Invisible hydromassage

Hidden Energy

Invisible Drain

Water Waves

All Around

Every colour of feeling good

Marc Sadler for Treesse

Three lines, 24 models

Invisible hydromassage, only stronger

Ice

Heaven

Phantom

Shadow

Muse GP

Maya GP

Wave GP

Drip

Abyss

The system that made hydromassage invisible

Zen

Zen Active

Wave

Muse

Maya

Soul Spa 120

Soul Spa 150

Fusion Spa 200

Fusion Spa 230

Fusion Spa 231

Fusion Active 230

Swimming on the spot, at home

Aquarun

Saint-Tropez

Antibes

Forma 390

What stands behind every tub

All under one roof.

A patent, not a retrofit.

Materials that allow shapes.

One design language.

Awarded and proven.

What goes around the tub

Square tubs under the BENT name

PURE 220 × 220 × 78 cm

CUBE 231 × 231 × 78 cm (upper volume)

Tell us the space. We will propose the model.