Mann McGowan 1700 Mini series, is a robust twin adjustable drop down seal which allows the drop mechanism to be adjustable at both ends for both downward movement and tilt control to provide strong even pressure over the entire length, so providing an enhanced seal which can be fine tuned to suit the environment it is designed to operate within. The 1700 Mini will provide acoustic, cold smoke and environmental sealing when used in conjunction with suitable doors and has achieved a 30 minute fire rating when tested to BS 476 pt. 22 1987.