The Duo Letterbox is a high-quality two-part letterplate designed to provide a secure, weather-resistant solution for receiving mail through PVC and timber doors of varying thicknesses. Featuring sprung anodised aluminium flaps on both the internal and external sides, it offers a smart, modern appearance while helping to minimise draughts and improve insulation.

Designed with an integrated weather seal and internal brush, the Duo Letterbox helps reduce the entry of wind, rain, dust, and insects through the letter opening, contributing to improved energy efficiency and comfort. Suitable for doors with a 265mm x 40mm aperture, its adjustable two-piece construction allows it to accommodate a range of door thicknesses, making it ideal for both replacement and new installations. Durable, corrosion-resistant, and easy to install, the Duo Letterbox is an excellent choice for residential and commercial properties seeking a stylish and long-lasting letterplate solution.