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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
Standard Features * Fixed airfoil blades parallel to 1st dimension given *
2" thin-line roll formed out-of-airstream frame
Submittal Drawing
Standard Features * Return air T-Bar lay-in filter grille * Removable louvered 20 gauge steel face * 20" x 20"x 1" filter (not included) * 7/8" fiberglass back plenum cut holes 6"-16" (collar by others) * Seismic support holes * Soft White
4" 3 Hour Vertical Mount Fire Door 2661-16X16 Residential Registers & Grilles Standard Features * Fixed airfoilh3. 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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