Briton Outside Access Device Knob Ergonomic Matt Silver Fire Rated Non-Handed

Outside access device with ergonomic knob operation for use with Briton 376 and 560/570 Series exit hardware. Provides a simple means of entry from the outside by any key holder. Suitable for single and double doors between 40mm to 70mm thick. Supplied with 40mm euro profile standard differ cylinder. Ideal for back of house or emergency exit doors.