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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Options * MAR - Mounting Angle Ring (sold in pairs - 2 needed
Standard Features * Stamped 22 gauge steel curved blade T-Bar lay-in supply diffuser * Field adjustable * Five air patterns: 101 - one way
RS52 Series Engineering/Performance Data
One piece curved frame with gasket fits flush to spiral pipe
Maximum dimension 60x60 single
4" 3 Hour Vertical Mount Fire Door 2661-36X20 Smoke-Fire Damper Options * MAR - Mountingh3. 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"
