Dimensions 250 x 250. The overall plaque size 200 x 200 standard top exit spigot. Flow rate is 60-70 liters per second, pressure drop is 26 pa. This is a minimalist grille showing only a negative detail 250mm 25mm width x 50mm depth.
Framework or fixings are not visible. Once the unit is plastered in place the flexible duct is pulled down through the hidden frame and attached to the central plaque and spigot using a simple and completely invisible screwed fixing. The exposed surface of the plaque is level with the ceiling and can be painted.