Primacoustic (a division of Radial Engineering Ltd.) CAD Details Search using keywords: volume control dampers
BROADWAY PANEL - Control Column 2inch Bevel F122 1248 xx - P122 1248 09
BROADWAY PANEL - Control Column 3inch Bevel F123 1248 xx
BROADWAY PANEL - Control Cube 2inch Bevel F122 2424 xx - P122 2424 09
BROADWAY PANEL - Control Cube 2inch Square F102 2424 xx - P102 2424 09