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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 14" Duct Opening (front blades parallel to shortest dimension)
Rust-resistant pre-coat with durable powder finish
3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White
2" 3 Hour Vertical Mount Fire Door 2561-30X28 past 12 months Check Out The All Abouth3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *
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