Ios Concealed Bath/Shower Mixer with Diverter
🚚 Delivery in 0–6 weeks · Free consultation
Ios concealed bath/shower mixer tap – Treemme – concealed single-lever mixer tap with an integrated diverter on the same plate, with two outlets: for example, a shower hose and a hand shower, or a bath spout and shower.
The Ios collection, designed by Marco Pisati and Giampiero Castagnoli, is inspired by the fluted columns of Greek temples: square body, flat handle with fine fluting and a waterfall jet spout. A luxury sculpture for contemporary bathrooms.
What you receive: the external part (plate, fluted handle and diverter button), in the chosen finish; the concealed body only if you choose the complete set.
External part or complete set?
This product is wall-mounted and has two parts:
- external part – what is visible: handle, plate or rosettes, spout, 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:
- External 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
10 finishes, from classic chrome to matte black, gold and brushed rose gold. PVD finishes are highly resistant to scratches and limescale.

Technical specifications
- External part code: RWIT 2AB1 .. 04
- Concealed body code: RWIT 51B1 ZZ 03
- Plate: 201 × 95 mm
- Outlets: 2
- Flow rate: 17 l/min
- Installation: wall-mounted
- Collection: Ios – design by Marco Pisati & Giampiero Castagnoli
- 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 “External 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 external part is installed at the end.
How long does delivery take?
Delivery throughout Romania takes 0–6 weeks, depending on the finish. The displayed prices include VAT.
For projects, technical sheets or help choosing the finish, the IdeaCasa team is at your disposal – free consultation.
Manufacturer: Rubinetterie 3M S.r.l. (Treemme), Via Enrico Mattei 10, 53041 Asciano (SI), Italy · export@rubinetterie3m.it