"4-WAY BLOW,PATTERN NO. 40,1.500 IN. VANES,REMOVABLE CORE,FRAME MATL ALUMINUM,SHUTTER MATL AND TYPE ALUMINUM VANE,NONADJUSTABLE VANE,O/A H 6 INS,O/A W 6 INS"
FEAT
SPECIAL FEATURES
"4-WAY BLOW,PATTERN NO. 40,1.500 IN. VANES,REMOVABLE CORE,FRAME MATL ALUMINUM,SHUTTER MATL AND TYPE ALUMINUM VANE,NONADJUSTABLE VANE,O/A H 6 INS,O/A W 6 INS"