426 BUILT-IN FAUCETS / ROCABOX RocaBox System elements Universal box: Manufactured in one single polypropylene piece, a stable and inert material. It Fastening ring: also manufactured Sound insulated elastomer: it includes different in polypropylene,it is needed absorbs all kind of noises and positioning steps to when installingthe RocaBox on vibrations from pipes to guarantee place the fastening plasterboard.It is fixed in the universal a minimum sound level during the ring when installing box allowing a minimum depth of 70 operation of RocaBox. it on light walls The mm and maximum depth of 95 mm box has “cogs” that enable to mark the diameter of the RocaBox on the plasterboard Cleaning block: it allows to close and clean the hydraulic circuit before placing the valve. In the closed position, it withstands 16 bar and in the open position it allows the comfortable cleaning of the Brass universal installation. body: máxima calidad high- quality brass, with excellent anticorrosive power, high hardness and resistance thanks to a special pressing. Box lid: manufactured in polypropylene, it allows the protection of the inner part ofRocaBox before installing the valve. Both protrusions on the lid help to level RocaBox correctly.