Can automatic door bottoms be installed in standard Steelcraft doors?

Standard Doors: standard inverted bottom channels will accept the following manufactures automatic door bottoms:

  1. National Guard (320)
  2. Pemko (420)
  3. Zero International (355/354)

Special (custom) option: a special/optional end channel that will support the following manufactures:

  1. National Guard (422/423/522)
  2. Pemko (443)
  3. Zero International (360/364).

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