4" 3 Hour Vertical Mount Fire Door 2661-20X18 Residential Registers & Grilles REVIT FILES Egg Crate T-Bar

REVIT FILES Egg Crate T-Bar Filter Grille 2" with Round Collar

Standard Features * Individually adjustable curved blade T-Bar lay in diffuser with concealed hinges * Hinged perforated face * Spring push release for easy access to adjust curved blades * 2x2 galvaneal steel panel with seismic support hangers * Round No Labor Collar sizes: 6-10"

available 4" through 40" round (2549)

425 Series Engineering/Performance Data

Collar sizes available in 6”–10”

4" 3 Hour Vertical Mount Fire Door 2661-20X18 Residential Registers & Grilles REVIT FILES Egg Crate T-Barh3. 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"