True Round Fire Damper 2652-4 Residential Registers & Grilles 700 CB20C - corner

700 CB20C - corner

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 12" Duct Opening (front blades parallel to shortest dimension)

available with one

904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 8" Duct Opening  (front blades parallel to shortest dimension)

True Round Fire Damper 2652-4 Residential Registers & Grilles 700 CB20C - cornerh3. Standard Features * Round 1 1 2 hour fire damper * Horizontal or Vertical installation * UL and California State Fire Marshall approved * Damper construction meets NFPA 90A requirements * Stainless steel curtain * 16 gauge steel frame * UL listed fusible link, 165 standard * All sizes utilize one main curtain stay * Galvanized finish h3. Options * MAR Mounting Angle Ring (sold in pairs 2 needed, 1 for each end)