From the engineering talent of Giampiero Castagnoli and the creative skills of the designer Marco Pisati comes 28mm, a discreet, sophisticated range crafted in steel throughout.

This new model owes its name to the dimensions of the tap body: a steel cylinder with a diameter of just 28 millimetres that has no equal anywhere on the international scene.


28mm was inspired by the designers’ desire to create a truly leading-edge addition to the tap market. The innovative model was obtained thanks to the use of a cartridge, designed for the purpose for Rubinetterie Treemme, which was used to significantly reduce the thicknesses, achieving a 28 mm diameter that is the signature feature of the product.

The simplicity of the elegant, minimal style makes the 28mm collection perfect for both contemporary bathrooms and settings with a rigorous look.


The 28mm collection features models for free-standing and built-in washbasins, bidets, bathtubs and showers, as well as showerheads, shower accessories, washbasin accessories and WC accessories.

28mm is available in the following PVD finishes: Gun Metal-PVD - PVD01, Bronze-PVD - PVD03 and Yellow Gold - PVD - PVD04.