Brown plastic ducting air outlet/inlet square grille with fixed louvres and anti-insect mesh/flyscreen. Features 155mm x 155mm external dimensions with a 5 inch / 125mm round male rear spigot, which can be removed for a flat surface installation. The louvre can be opened with a flat head screwdriver for easy installation and cleaning of the insect screen. Fits Kair 125mm round female duct pipe (Part: DUCVKC267) or 127mm flexible hose (Part: DUCP0092/127/35). Simply push-fit duct and fittings together. Ideal for bathroom or kitchen extractor fans, hydroponics fans, or in-line extract fans.