Application: For fitting into aperture within dry lined stud partition wall where sufficient space is available for services. Benefits: Space savingpanel unit does not protrude into the room. Avoids need for interface at floor and ceiling junctions. Maintains up to 44RwdB sound insulation of standard partition wall. Most cost effective solution. Limitations. Not suitable for use within fire rated walls or within acoustic rated walls exceeding 44RwdB - Refer to Boxed-out unit.