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In stock orders placed now will be shipped next business day.

Please be advised: Our office hours December 23rd are 8am-11:30am and we will be closed December 24th through December 26th in observance of Christmas.


Shipping nationwide since 1970, let the Von Duprin Mullion experts at RBA Door assist you in your search for replacement parts. Review our selection of mullion tops and covers, fitting sets, brackets and retrofitting kits to supplant your Von Duprin exit device door hardware. Call the professionals at Von Duprin for all your mullion questions. You can use our Von Duprin Mullion Hardware to help find what you need.