3 Hour Out Of Air Fire Door Grille 2563-10X10 Residential Registers & Grilles Low profile design for tight

Low profile design for tight mechanical areas

102 PC - corner

Surface mount fixed blade grille with airfoil blades at 0°

Aluminum 3 cone T-Bar diffuser with a fixed face

Extruded aluminum fixed bar blades at 45°

3 Hour Out Of Air Fire Door Grille 2563-10X10 Residential Registers & Grilles Low profile design for tighth3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *