440mm x 120mm / 18" x 5'' Inch Two Sided White Door Air Vent Grille - Door Vent Register for Interior Door, Bathroom, Bedroom, Garage, Kitchen - Amazon.com
Vent Systems 10"x10" Inch Air Vent Cover - White - Air Vent Louver - Grill Cover - Built-in Insect Screen - Straight Back, Without Flange - HVAC Vents for Bathroom, Home Office, Kitchen - Amazon.com
Louvred Grille 100mm 4 inch White External Wall Air Vent