An external wall mounted louvered grille that connects to 6" duct or wall sleeve. The grille is designed to give an aesthetically pleasing finish to any external wall where duct terminates. The grille downward facing blades face downward to protect against rain and wind. An insect mesh is also included to prevent any bugs or mites entering your room. Designed to terminate your extract duct to an external wall. Louvered blades to reduce the effects of wind and Rain. Insect mesh Included. Easy to install, just push-fit duct and fittings together. Uv protected to prevent discoloring. Perfectly suited bathroom or kitchen extractor fan vent, hydroponics fan, or in-line extract fan.