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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
53% free area * 1306: 3/4" lattice opening
For ceiling or sidewall applications
2" ADC compliant round collar with a bead for ease of installation
1/2” Wide x 1/2” High square holes
Adjustable modular cores with fixed curved blades
4" 3 Hour Vertical Mount Fire Door 2661-40X52 past 12 months 53% free area * 1306:h3. 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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