The single-slot grating is part of an integral system, consisting of a discrete slot, a channel body and a sump unit for optimal maintenance of the drainage system.

It is an inverted “T” or “L” shaped grating model, that stands out mainly for its aesthetics, and integrates perfectly in the pavement (either concrete, paving stone or tiles), totally blending in with the urban landscape.

The system is developed by the Department of Engineering of ULMA, adaptable to different models of channel and available in galvanised and stainless steel. It withstands a load up to D-400 according to Standard EN1433

The grating can be single-slot or double-slot for greater hydraulic efficiency or side-slot to install close to walls