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Mechanical backcheck
ThermoSeal insert helps with acoustic performance
it also keeps your door in constant alignment
310-2-3/4OB-F-24D-630
This product offers an effective solution for door protection in educational settings
QM99EO Panic Rim Exit Device with Quiet Mechanical Option Length:3'0" (2'4" to 3'0" Doors) Mechanical backcheckVon Duprin QM99EO Grade 1 Quiet Mechanical Rim Exit Device, Wide Stile Pushpad, Panic Rated, Exit Only, Hex Dogging High performance, wide stile heavy duty rim exit device for high use and abuse applications The Von Duprin QM option controls motion to reduce operational noise. The QM rim device option provides damper controlled re latching. For optimal quiet performance of your total opening, use the Von Duprin QM option along with a properly adjusted
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