GK550

    For Centerline Latch Entry

    Optional hold-open function, adjustable keeper

    Lock mode: Fail-safe or Fail-secure


GK570 / GK571

    For Offset Latch Entry

    Lock mode: Fail-safe (GK570)
    Fail-secure (GK571)


GK580

    For Centerline Latch Entry

    Optional hold-open function, adjustable keeper, 3 faceplates of different sizes included

    Lock mode: Fail-safe or Fail-secure