Aluminum Airfoil Blade Double Deflection Diffuser 903-18X48 Finish:Driftwood Tan listed Fire-Resistance Diffuser * TVB

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square Collar

055 T6 aluminum surface mount return air grille * 45 fixed blades parallel to longest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 905 O - recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T - T-Bar mount * 905 HD - reinforced construction * 905 IS - insect screen * 1335-1338 Series - stainless steel version * Fractional

linkage and handle enclosed in valve to assure trouble-free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Steel multi-shutter damper * Soft White Options * 200 O - steel lever operated opposed blade damper * Tamper proof screws * Standard Color

One piece curved frame with gasket fits flush to spiral pipe

Installation Ring only

Aluminum Airfoil Blade Double Deflection Diffuser 903-18X48 Finish:Driftwood Tan listed Fire-Resistance Diffuser * TVBStandard 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