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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice face *
Options * MAR - Mounting Angle Ring (sold in pairs - 2 needed
Double deflection surface mount grille with adjustable airfoil blades
375 Series Engineering/Performance Data
Stainless steel
4" 3 Hour Vertical Mount Fire Door 2661-28X28 Residential Registers & Grilles Standard Features * 1/2" xh3. 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$ 168.00
US$ 193.00
US$ 110.00
