The Von Duprin Door Exit System LD 3527 NL OP US 26D 3' 388  ED35A.21438 is a  heavy-duty, commercial-grade door opener designed for use with commercial, front entrance, security, and fire doors. Item looks great and new. See pictures.  Comes with parts shown and sold as-is. Heavy item. Box will be taped up and label put on for shipping. Box has wear. See pictures.