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“ what standaard mullion ”

Resolution: To use Von Duprin mullion for something other than our standard strike, order the mullion "Blank" and prep in the field.:

What strike is required when using the 2670 Guard-X on a pair of doors?

Resolution: With a mullion: Use the standard strike 267 With no mullion and inactive leaf being held closed with flush or surface bolts: Use the 2609 double door strike :

What cylinder do I use on a Von Duprin Keyed Removable Mullion?

Resolution: see installations instructions here :

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“ what standaard mullion ”

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