Models
0° Fixed Blades
61FH-HD - Horizontal (Long) Front Blades
61FH-HD-O - Horizontal (Long) Front Blades • with Steel OBD
61FV-HD - Vertical (Short) Front Blades
61FV-HD-O - Vertical (Short) Front Blades • with Steel OBD
45° Fixed Blades
6145H-HD - Horizontal (Long) Front Blades
6145H-HD-O - Horizontal (Long) Front Blades • with Steel OBD
6145V-HD - Vertical (Short) Front Blades
6145V-HD-O - Vertical (Short) Front Blades • with Steel OBD
Heavy Duty Filter Grille
61FB45-HD - Heavy Duty • Fixed 45° Deflection • ½" (13) Spacing
61FBS-HD - Heavy Duty • Fixed 0° Deflection • ½" (13) Spacing