X-Change Concealed Bath/Shower Mixer with Diverter
🚚 Delivery in 0–6 weeks · Free consultation
X-Change concealed bath/shower mixer tap – Treemme – concealed single-lever mixer with integrated diverter on the same plate, with two outlets: for example, a shower hose and hand shower, or bath spout and shower.
The Treemme X-Change collection is built from pure cylindrical shapes: slim bodies, curved pipes and fine levers, in single-lever or two-tap versions. An essential design, easy to combine, for contemporary bathrooms.
What you receive: the exterior part (plate, lever and diverter button), in the chosen 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: lever, plate or rosettes, pipe, in the chosen finish;
- concealed body (code RWIT 51B1 ZZ 03) – 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 tap or the plumber has already installed it);
- Complete set with concealed body – for a new installation: you receive everything that is necessary.
Finishes
9 finishes, from classic chrome to matte black, matte white, gold and brushed rose gold. PVD finishes are very resistant to scratches and limescale.

Technical specifications
- Exterior part code: RWIT 58B1 .. 03
- Concealed body code: RWIT 51B1 ZZ 03
- Outlets: 2
- Flow rate: 20 l/min
- Installation: wall-mounted
- Collection: X-Change – Treemme design
- Material: brass, galvanic and PVD finishes
- Manufacturer: Treemme Rubinetterie, Asciano (Siena) – Made in Italy
Complete dimensions are in the technical drawing in the image gallery.
Frequently asked questions
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 concealed 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 tiling, 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