Map Aluminium Adjustable Air Vent for Openings 9\"" x 6\"" (229mm x 152mm), Double Brick Hit & Miss Ventilation Metal Cover, Silver\n\n-- Overall vent size: 260mm x 165mm | Screw hole distance: 248mm x 152mm\n-- For openings up to 229mm x 152mm (9\"" x 6\"") | Airflow when open: 8500sq mm\n-- This adjustable aluminum vent is ideal for providing air flow through a building, helping to reduce problems caused by stale air, dampness, smells and condensation\n-- Suitable for interior & exterior use. Designed to cover a double brick aperture\n-- Central sliding point to open and close giving the user full control of the ventilation required \n\nShipping\n\n--We offer FREE shipping on all orders and use a fast delivery service.\n\n--We dispatch the product within one business day of payment, usually sooner.\n\n--We are always working hard to ensure your package arrives as soon as possible.\n\n--We ship to many cities in the UK. We do not accept P.O. Boxes. Please provide a physical.