A robust commercial metal framed telescopic letterbox with metal flaps and a high performance intumescent liner.
In the event of a fire the intumescent liner expands to seal the letterbox aperture and retains the fire integrity of the door.
Fire and smoke rated for 30 or 60 minutes, depending on version.
Security tested to PAS 23/24.
Fitted with brush pile draught excluders and sound dampening bumpers with a fully sealed backplate.
Available in Satin Anodised Aluminium, Polished Gold and Polished Silver finishes.
Typical application: fitting to fire doors in multiple occupancy residential buildings.
Cut out required on this size is 275mm x 55mm. Brushes are designed to go on the inside for maximum protection and draught proofing.