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3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White
5/32” crossbars
* 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
w/ Lever Operated Opposed Blade Damper
enclosed in valve to assure trouble-free operation
4 1/4" Vertical Mount Fire Damper 2633-26X6 Residential Registers & Grilles 3 or 4 way airh3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion
