| GENERAL CHARACTERISTICS ITEM DESCRIPTION | DESIGNED FOR USE IN DUCTS BOTH TO REDUCE PRESSURE LOSS AND TO PROVIDE A MORE UNIFORM VELOCITY DISTRIBUTION BLADE TO BE CUT TO LENGTH AND FIELD ASSEMBLED WITH SIDE PIECES BY PEENING OVER CENTERS OF BLADE TO HOLD SECURE IN PLACE PRIOR TO INSTALLATION IN DUCT 22 GAUGE GALVANIZED ALUMINUM,6 FT LONG,2.250 IN. RADIUS |