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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Install with louvers in up or down position for best duct concealment
Submittals and Performance Data
2" ADC compliant round collar with bead for ease of installation (square sizes only)
855 Series Submittal
2-way reversible door on rectangular sizes
3 Hour Out Of Air Fire Door Grille 2663-48X28 Residential Registers & Grilles Install with louvers in uph3. 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"
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