Pay in 4 interest-free payments of $96.00 Learn more
Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Standard Features * Heavy duty honeycomb construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system * Soft White Options * No mounting holes * Tamper Proof Screws * Standard Color
Double deflection transition box mount spiral pipe grille
Adjustable blades oriented for 3 or 4-way air flow pattern
Holds up to 1" filter
3 Hour Out Of Air Fire Door Grille 2663-48X48 Smoke-Fire Damper Standard Features * Heavy dutyh3. Standard Features * 2661 Square or rectangular fire door for vertical mount only. Maximum dimension 60x60. For damper free area chart A click here * 2663 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 60w x 52h. For damper free area chart B click here * 2665 Round fire door for vertical mount only. Available 4" thru 52" round. * 3 hour rated * UL and California State Fire Marshall approved * 4 1 4"
US$ 115.92
US$ 85.20
US$ 26.48
US$ 56.32
US$ 26.48
US$ 14.00
US$ 328.04
US$ 49.44
US$ 109.28
US$ 169.52
US$ 141.40
US$ 549.36
US$ 13.52
US$ 224.52
US$ 109.28
