SOTTO

Sound attenuating transfer unit
  • For the transfer of air through a wall
  • Fits in a circular wall opening
  • Simple to install
  • Accessories:
    • TRAC disc valve
    • VGR telescopic wall sleeve
  • Standard color White RAL 9003
    • 5 alternative standard colors
    • Other colors upon request
AIR FLOW - PRESSURE DROP - Rw
SOTTO
Size
Hole in wall (in)0.04 inWC
cfm
0.06 inWC
cfm
0.08 inWC
cfm
Rw=Dn,ew (dB)
80-1003.130364055
80-1003.934404955
125-1604.944536151
125-1606.349576651
The data applies to installation in a 4 in thick studded wall with a 108 sq ft
transmission area. One transfer diffuser on each side of the wall.