These Window Ware letterboxes will suit doors 38mm-78mm thick. They are available in a choice of finish and have external sprung flaps. There is also an internal nylon brush to reduce air filtration.
- Letter Box is a robust moulded frame set with internal and external sprung flaps
- The external flap has been designed to be opened to approx. 147º, giving a generous and clear access to the sleeve aperture
- A secondary internal nylon brush seal has been introduced to reduce air filtration when in use
- Will suit door thickness of 38 - 78mm