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DORMA Architectural Hardware
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The 8900 narrow-projection surface door closers conform to the requirements of ANSI A156.4 Grade 1. They offer spring power adjustment, self-adjusting backcheck and optional delayed action.
They are finished with a flatform style arm assembly and a backcheck positioning valve. They are available with a variety of specialty arms, plates and brackets, as well as electroplated architectural finishes.
Content Category: Doors & Hardware