Astro Eco Telescopic Letterbox

The Astro Eco Telescopic Letterbox is designed to improve fire safety and security in residential and multi-occupancy buildings, helping maintain the integrity of fire-rated doors.

Built with a durable ABS frame and a telescopic sleeve, this letterbox adjusts to suit a range of door thicknesses while maintaining a clean, secure fit. Metal flaps open to 180° for ease of use, while integrated brush seals help reduce draughts and heat loss.

At the core of the design is a high-performance intumescent liner, which expands in the event of a fire to seal the letterbox opening. This helps prevent the spread of fire and smoke through the door, supporting overall compartmentation and compliance.

This product forms part of a wider range of passive fire protection solutions, making it a suitable addition alongside other intumescent products used to protect service penetrations and door hardware.

Additional features such as acoustic dampening bumpers and a fully sealed backplate contribute to improved thermal and sound performance, making it suitable for both safety and comfort.

Available in 10" standard and 12" commercial sizes, with a wide selection of finishes including Satin Aluminium, Chrome, Stainless Steel, Polished Brass and more, it offers both performance and aesthetic flexibility.

• Telescopic design to suit varying door thicknesses

• High-performance intumescent liner for fire and smoke protection

• Helps maintain fire door integrity during a fire

• Metal flaps open to 180° for ease of use

• Integrated brush seals for draught exclusion

• Acoustic dampening bumpers for quieter operation

• Fully sealed backplate for improved performance

• Available in 10" standard and 12" commercial sizes

• Wide range of decorative finishes available

• Suitable for residential and multi-occupancy buildings

• Complements wider intumescent fire protection products