Aluminum Airfoil Blade Double Deflection Diffuser 904-24X18 Damper:Without Damper 12" and 14") * HVD

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

450 Series Submittal

Designer Colors

For evaporative cooling or high-velocity exhaust applications

3 cone steel diffuser with hinged core for easy duct access

Aluminum Airfoil Blade Double Deflection Diffuser 904-24X18 Damper:Without Damper 12" and 14") * HVD904 Double Deflection Adjustable Aluminum Blade Grille For a 24" x 18" Duct Opening(front blades parallel to shortest dimension) Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to shortest dimension, back blades parallel to longest dimension Extruded aluminum surface mount frame with signature line marks Provides 4 way air flow on one plane Nylon bushings on adj. blades prevent metal on