True Round Fire Damper 2652-4

h3.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)