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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Ideal for residential and light commercial application
Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
back blades parallel to the shortest dimension Extruded aluminum surface mount frame with signature line marks Provides 4-way air flow on one plane Nylon bushings on adj
Galvanized Finish
with 57% free area
4" 3 Hour Vertical Mount Fire Door 2661-24X24 Smoke-Fire Damper Ideal for residential and lighth3. 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$ 445.00
US$ 294.50
US$ 320.00
