Black Plastic Ventilation Grille

A plain black plastic grille that covers an air opening in a wall, door, cupboard or boxed-in space while still letting air through. Commonly fitted to kitchen units, meter cupboards and under-stair voids. Fixes with screws through the corners.

• Check before ordering: Measure the finished opening itself, not the hole you cut for it. A grille is sized to the aperture it covers, and the difference is usually where the mistake happens.