True Round Fire Damper 2652-4 Residential Registers & Grilles Square to round transition collar

Square to round transition collar

Standard Features * 2561 - Square or rectangular fire door for vertical mount only

1x2 T-Bar (8" x 20" duct)

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

Field installable bowtie damper with round ring

True Round Fire Damper 2652-4 Residential Registers & Grilles Square to round transition collarh3. 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)