Mann McGowan DD-420S, is a robust threshold seal providing acoustic, cold smoke and environmental sealing when used in conjunction with suitable doors.
Enviroseal DD1 420S Threshold Seal
DD-420S has achieved a 30 minute fire rating when tested to BS 476 pt. 22 1987.
Acoustic values of upto 34dB can be achieved depending on door type selected.
- High quality aluminium threshold seal
- Seals gaps up to 13mm
- Simple to fit with slide and click mechanism
- Easy to adjust using slot head screwdriver
- 30 minute fire rating
- Excellent noise-reducing performance up to 34dB
- Available in 5 standard lengths 630, 830, 930, 1030 and 1130mm
- Optional end plates and cover plates