Floor Register 1550-R-28X34 past 12 months inner dimension and outer dimension

inner dimension and outer dimension sizes available * Tamper proof screws * Standard Color

904 - Double Deflection Adjustable Aluminum Blade Grille For a 42" x 18" Duct Opening (front blades parallel to shortest dimension)

Holds up to 1" filter

Available in even sizes 6" to 20" and 24"

One-piece removable slide damper for off-season closure

Floor Register 1550-R-28X34 past 12 months inner dimension and outer dimensionStandard Features Fixed bars with 0 deflection Heavy duty steel honeycomb construction Flush core and frame provides smooth surface Free area equals more than 75% of nominal size Blades run parallel to longest dimension Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system Rust resistant pre coat with durable powder finish Driftwood Tan Options Reinforced welded core and extra supports for heavy duty