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4410ME heavy duty, electrically controlled closer/holderDesigned to provide infinitely adjustable hold-open for fire and smoke barrier doorsDoor is held open until current interruption releases mechanism and the door closesDouble lever arm closer is specifically designed for interior doorsChoice of finishes, cylinder functions, and installation accessories meet virtually all life safety requirementsCertifications:Grade 1 - ANSI A156.15UL 10C, 100 Hour Salt SprayMeets BAA - Buy American ActNFPA 101Body construction:Cast Iron BodyFull complement bearing 1-1/2? diameter piston11/16? Diameter Double Heat Treated Pinion Journal
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