915 - FIXED 45° BLADE GRILLE 915-42X28 Step Down Ceiling Diffuser Standard Features * Cones are

Standard Features * Cones are one-piece stamped construction providing a clean

904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)

Designed for return applications and as a vented access door to equipment

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

Adjustable steel curved blades

915 - FIXED 45° BLADE GRILLE 915-42X28 Step Down Ceiling Diffuser Standard Features * Cones areStandard Features Extruded aluminum surface mount frame with signature line marks Extruded aluminum fixed bar blades at 45 Blades are parallel to the longest dimension Designed to minimize vision into the air duct Center margins are mounted on the backside of the grille for a streamlined continuous look Countersunk mounting holes with color matching Phillips Pozidriv screws Rust resistant pre coat with durable powder finish Soft White Options Recessed