Product Description & Features Maintains door alignment Standard with four wires, six wires maximum 24-gauge wire is rated at 2 amps for low voltage, class II wiring applications Available in non-ferrous and malleable iron for fire door assemblies-specify EFM19 3/4" (19mm) offset Not load-bearing Door and jamb portion cannot be separated Furnished with wood and machine screws For 20-minute label, suffix -20
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