3.6 Concealed Single-Lever Washbasin Mixer

Treemme 3.6 concealed washbasin mixer tap – wall-mounted stainless steel washbasin tap: flat spout and handle on a rectangular plate. Available in 3.6 or 3.6+ versions, with an 180 or 230 mm spout.

The 3.6 & 3.6+ collection, designed by Giampiero Castagnoli, features a cylindrical stainless steel body and a flat spout as thin as a ruler. It is available in two versions: 3.6, with a flat, horizontal handle, and 3.6+, with a cylindrical handle that continues the line of the body. It is made entirely of AISI 316L stainless steel, which does not rust and is resistant to limescale.

What you receive: the external part (plate, spout and handle), in the chosen model and 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 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:

• 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 you need.

Finishes

Satin stainless steel or one of six PVD colours: gun metal, bronze, gold, light bronze, chocolate and champagne. PVD finishes are applied in a vacuum and are highly resistant to scratches and limescale.

Technical specifications

• External part codes: RWIT 9AA5 .. 02 / RWIT 3DA5 .. 41 (180 mm spout), RWIT 9AA6 .. 02 / RWIT 3DA6 .. 41 (230 mm spout)
• Concealed body code: RWIT 51A5 ZZ 01 (universal, for walls at least 50 mm thick)
• Flow rate: 4 l/min
• Installation: wall-mounted
• Collection: 3.6 & 3.6+ – design by Giampiero Castagnoli
• Material: AISI 316L stainless steel, satin or with PVD finish
• Manufacturer: Treemme Rubinetterie, Asciano (Siena) – Made in Italy

Complete dimensions are shown in the technical drawing in the image gallery.

Frequently asked questions

What is the difference between 3.6 and 3.6+?

The body and spout are the same; the handle differs. On the 3.6, the handle is flat and horizontal, like a blade, while on the 3.6+, the handle is cylindrical and continues the line of the body.

Why stainless steel?

AISI 316L stainless steel is the same steel used in the food and shipbuilding industries: it does not rust, does not release metals into the water, and is resistant to limescale and cleaning products. PVD finishes are applied in a vacuum and are highly resistant to scratches.

Do I need the concealed body?

Yes, it is mandatory for a new installation. 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.