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425 Series Engineering/Performance Data
blades prevent metal on metal rattle Countersunk mounting holes with color matching Phillips Pozidriv screws Rust-resistant pre-coat with durable powder finish Soft White Options Screwdriver operated Opposed Blade Damper 2" ADC compliant square to round collar with a bead for ease of installation Heavy Duty Construction MRI Compatible Insect Screen Fractional
For evaporative cooling or high-velocity exhaust applications
Holds up to a 1" filter (not included) with filter retention tabs (FG1)
Aluminum Airfoil Blade Double Deflection Diffuser 904-24X24 Residential Registers & Grilles 425 Series Engineering/Performance Data904 Double Deflection Adjustable Aluminum Blade Grille For a 24" x 24" 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
US$ 60.13
US$ 96.51
US$ 101.25
