Watt Stainless Steel Concealed Shower Thermostat, 2–5 Outlets
🚚 Delivery in 0–6 weeks · Free consultation
Watt concealed stainless steel shower thermostat, 2–5 outlets – Treemme – concealed shower thermostat with one three-way valve for each outlet and a round thermostatic handle, on a narrow plate 80 mm high. The temperature remains constant, and each outlet can be turned on and adjusted separately.
The Watt collection, designed by Studio Q-BIC, has an industrial and graphic character: a long, narrow plate on which small three-way valves are aligned, one for each outlet, and a round handle for the temperature. A precise concealed shower, with simple and safe gestures. The AISI 316L stainless steel version, satin or in PVD colors, is equally resistant to limescale and cleaning products.
What you receive: the exterior part (the plate with the valves and handle), in the chosen model and finish; the concealed body only if you choose the complete set.
Exterior part or complete set?
This product is wall-mounted and has two parts:
- exterior part – what is visible: the handle, plate or rosettes, pipe, in the chosen finish;
- concealed body (code RWIT 2B86 ZZ 30 / RWIT 2B94 ZZ 30 / RWIT 2BF4 ZZ 30 / RWIT 2BF5 ZZ 30) – the part that is built into the wall by the plumber. It is not visible and is the same for all finishes.
Without the concealed body, the product cannot be installed. From the Set menu, choose:
- Exterior part only – if you already have the Treemme concealed body installed in the wall (for example, you are replacing a faucet or the plumber has already installed it);
- Complete set with concealed body – for a new installation: you receive everything that is necessary.
Finishes
Satin stainless steel or one of the three PVD colors: gun metal, bronze and gold. PVD finishes are deposited in a vacuum and are highly resistant to scratches and limescale.

Technical specifications
- Exterior part codes: RWIT 2B86 .. 01 (2 outlets), RWIT 2B94 .. 01 (3 outlets), RWIT 2BF4 .. 01 (4 outlets), RWIT 2BF5 .. 01 (5 outlets)
- Concealed body codes: RWIT 2B86 ZZ 30, RWIT 2B94 ZZ 30, RWIT 2BF4 ZZ 30, RWIT 2BF5 ZZ 30 (one for each model)
- Plate: 230–410 × 80 mm, depending on the number of outlets
- Flow rate: 15–20 l/min per outlet
- Installation: wall-mounted
- Collection: Watt – Studio Q-BIC design
- Material: AISI 316L stainless steel, satin or with PVD finish
- Manufacturer: Treemme Rubinetterie, Asciano (Siena) – Made in Italy
Complete dimensions are in the technical drawing in the image gallery.
Frequently asked questions
How do I use it?
Each outlet has its own three-way valve: turn it to turn on the water and adjust the flow rate for that outlet. You can use multiple outlets at the same time. The round handle adjusts the temperature.
What does the thermostat do?
It maintains the set water temperature, even if the water pressure or temperature in the network changes, for a comfortable and safe shower.
How many outlets do I need?
One for each water point: 2 for the shower panel and hand shower, 3 if you add a waterfall or side jets, 4–5 for a complete spa shower.
Do I need the concealed body?
Yes, for a new installation it is mandatory. Choose "Complete set with concealed body". The "Exterior part only" option is only for those who already have the Treemme body installed in the wall.
How is it installed?
Installation is carried out by a plumber. For concealed models, the body is built into the wall before the tiles, and the exterior part is installed at the end.
How long does delivery take?
Delivery to your country takes 0–6 weeks, depending on the finish.
For projects, technical sheets or help choosing the finish, the IdeaCasa team is at your disposal – free consultation.
Import duties and taxes are paid by the customer on delivery.
Manufacturer: Rubinetterie 3M S.r.l. (Treemme), Via Enrico Mattei 10, 53041 Asciano (SI), Italy · export@rubinetterie3m.it