3 Hour Out Of Air Fire Door Grille 2663-30X16 Specialty Products Standard Features * Double deflection

Standard Features * Double deflection aluminum wall or ceiling register * Heavy gauge aluminum frame * Individually adjustable extruded aluminum airfoil blades * Allows for spot or normal air diffusion * Hidden mounting mechanism * White Options: * Standard Color or Designer Color Finish available on this product

Hinged perforated face with screwdriver access to release

Adjustable steel curved blades

All steel parts with galvanized finish or zinc coating

Installation Instructions * UL approved installation instructions

3 Hour Out Of Air Fire Door Grille 2663-30X16 Specialty Products Standard Features * Double deflectionh3. Standard Features * 2661 Square or rectangular fire door for vertical mount only. Maximum dimension 60x60. For damper free area chart A click here * 2663 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 60w x 52h. For damper free area chart B click here * 2665 Round fire door for vertical mount only. Available 4" thru 52" round. * 3 hour rated * UL and California State Fire Marshall approved * 4 1 4"