Mullions
SARGENT 12-980 REMOVABLE MULLION
Steel channel iron mullion in removable design, for fire rated openings up to 8' (244cm) length. 2" x 3" (51mm x 76mm) square design. Malleable iron top and bottom retainers included.
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SARGENT 980 REMOVABLE MULLION
Aluminum mullion in removable design. Includes 511 top retainer and 502 bottom retainer. Available in 8' (244cm) and 10' (305cm) lengths.
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VON DUPRIN KEYED REMOVABLE MULLION
A keyed removable mullion from Von Duprin now carries the UL fire label for openings up to 8'0". It delivers single-door performance and security on double fire-door applications.
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