NORSEAL NOR820/0400/S NORSOUND RETRO FIT

The Norsound NOR820 is a premium German-engineered automatic drop seal designed to improve acoustic performance, reduce draughts, and help prevent the passage of smoke beneath doors. Ideal for retrofit applications, it can be surface-mounted to either side of the door without the need for routing, making installation quick and straightforward. Suitable for use on most fire doors, the seal automatically lowers when the door closes to create an effective seal against the floor and retracts when the door is opened. Features: Surface-mounted automatic drop seal Suitable for most fire doors No routing required for installation Can be fitted to the inside or outside face of the door Helps reduce smoke, draughts, and sound transmission Smoke tested in accordance with BS 8214 Acoustically tested to BS EN ISO 10140-2 Certifire approved (CF629) High-quality German manufacture Can be cut back by up to 125mm to suit door width Quick and easy retrofit installation Suitable for: Fire doors, acoustic doors, commercial buildings, schools, healthcare facilities, offices, and residential developments requiring smoke and sound control.