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Negator stainless steel closure springs mounted on spring pin brackets
055 T6 extruded aluminum surface mount supply diffuser * Four air patterns: CB10 - one way
14" * Soft White Options * Field installable Bowtie Damper (BD) * TVB - Thermal Vapor Blanket * HVD - Hinge Down Face
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 8" Duct Opening (front blades parallel to shortest dimension)
Spiral pipe diameter must be 4” larger than Height of the duct opening
3 Hour Out Of Air Fire Door Grille 2663-36X22 Step Down Ceiling Diffuser Negator stainless steel closure springsh3. 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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