Repa Market 4'' x 4'' Inch (Inside Dimensions) Plastic White - Vent Cover - Square Duct Cover - Air Vent Louver - Protective Screen Mesh - HVAC Ventilation (6" x 6" Outside Dimensions)

6'' x 6'' Inch / 150 x 150 mm Plastic Vent Cover - White - Square Soffit Vent - Exhaust Ventilation Louver - Air Inlet Grille Cover - Built-in Screen Mesh - HVAC Vent Duct Cover

H&C VENT White Ventilation Grille with Slider and Insect Protection 6 x 6Inch / 150 x 150mm │ Vent Cover │ Extractor Air Vent Covers for Inside and Outside use │ Pipe Covers for Wall Door Window

Awenta Plastic Air Vent Grille Cover 150x150mm 6x6 inch, White with Insect Grid Fly Net, Screw Hole Covers for Better Look