22mm Concealed Wall-Mounted Washbasin Mixer

22mm concealed washbasin tap – Treemme – concealed washbasin tap in stainless steel: curved spout on a round rosette, with two cross handles, two knurled knobs or a single lever. Several spout lengths are available in satin stainless steel only.

The 22mm collection, designed by Marco Fagioli, Emanuel Gargano and Giampiero Castagnoli, is based on a 22 mm diameter stainless steel tube: curved spouts with clean lines and cylindrical knurled handles, with a fine texture that provides a secure grip even with wet hands. It is made entirely from AISI 316L stainless steel, satin-finished or in PVD colours.

What you receive: the external part, in the model and finish of your choice; the concealed body only if you choose the complete set.

External part or complete set?

This product is concealed in the wall and has two parts:

• external part – the visible part: lever, plate or rosettes, spout, in the finish of your choice;
• concealed body (code RWIT 6051 ZZ 02) – the part that is built into the wall by the plumber. It is not visible and is the same for all finishes.

The product cannot be installed without the concealed body. From the Set menu, choose:

• External part only – if you already have a Treemme concealed body installed in the wall (for example, if you are replacing a tap or the plumber has already installed it);
• Complete set with concealed body – for a new installation: you will receive everything you need.

Finishes

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

Technical specifications

• External part codes: RWIT 6051 .. 03 (2 handles, 168 mm spout), RWIT 6052 IS 03 (2 handles, 213 mm spout, satin stainless steel only), RWIT 3051 .. 03 (2 knobs, 224 mm spout), RWIT 1151 .. 03 (single lever, 173 mm spout), RWIT 1152 IS 03 (single lever, 218 mm spout, satin stainless steel only)
• Concealed body code: RWIT 6051 ZZ 02
• Flow rate: 6 l/min
• Installation: concealed in the wall
• Collection: 22mm – designed by Marco Fagioli, Emanuel Gargano and Giampiero Castagnoli
• Material: AISI 316L stainless steel, satin-finished or with a 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 are knurled handles?

The 22mm cylindrical handles have a fine texture engraved into the steel, which makes them pleasant to touch and easy to turn even with wet hands or soapy hands.

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 a 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 a finish, the IdeaCasa team is at your disposal – free consultation.