X-Change Concealed Washbasin Mixer, Separate Rosettes
🚚 Delivery in 0–6 weeks · Free consultation
X-Change concealed washbasin mixer, separate rosettes – Treemme – concealed washbasin mixer, with a curved spout and handle on two separate round rosettes. The spout is available in 175 or 235 mm.
The Treemme X-Change collection is built around pure cylindrical shapes: slim bodies, curved spouts and fine handles, available in single-lever or two-tap versions. An essential design, easy to combine, for contemporary bathrooms.
What you receive: the exterior part (rosettes, spout and handle), in the model and finish of your choice; the concealed body only if you choose the complete set.
Exterior part or complete set?
This product is concealed and has two parts:
- exterior part – what is visible: handle, plate or rosettes, spout, in the finish of your choice;
- concealed body (code RWIT 51A5 ZZ 01) – 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 mixer or the plumber has already installed it);
- Complete set with concealed body – for a new installation: you receive everything you need.
Finishes
9 finishes, from classic chrome to matte black, matte white, gold and brushed rose gold. PVD finishes are highly resistant to scratches and limescale.

Technical specifications
- Exterior part codes: RWIT 75C5 .. 01 (175 mm spout), RWIT 75C6 .. 01 (235 mm spout)
- Concealed body code: RWIT 51A5 ZZ 01 (universal, for walls at least 50 mm thick)
- Flow rate: 5 l/min
- Installation: concealed
- Collection: X-Change – Treemme design
- Material: brass, galvanic and PVD finishes
- Manufacturer: Treemme Rubinetterie, Asciano (Siena) – Made in Italy
Complete dimensions are shown 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