273 x 70mm. ½ hour fire rated. Adjustable to fit 45 to 54mm thick doors. Opens to 180°. Suitable for FD30 doors. BS 47622. 10 year manufacturer's guarantee. Brass.
252 x 70mm. ½ hour fire rated. Adjustable to fit 40 or 65mm thick doors. Opens to 180°. Suitable for FD30 doors. BS 476 Part 22. 10 year manufacturer's guarantee. Chrome.