Aluminum Airfoil Blade Double Deflection Diffuser 903-18X44 Damper:without Damper *Note: Ceramic fiber blade insulation

*Note: Ceramic fiber blade insulation is not UL required on dampers with free areas less than 80 square inches

Delivers supply air in a 360°air pattern

UL listed and tested in accordance with UL Standard 555C

032 Aluminum construction * Tamper proof screws * Standard Color

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice return air grille * Surface mount grille with

Aluminum Airfoil Blade Double Deflection Diffuser 903-18X44 Damper:without Damper *Note: Ceramic fiber blade insulationStandard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension, back blades parallel to the shortest 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 metal rattle Countersunk mounting holes with color matching Phillips Pozidriv screws Rust resistant pre coat with durable powder