Custom anesthesia kits labeled as follows: (1) DeRoyal (R) Adult Exp Anesthesia Circuit, REF 86-001737, Rx Only, NON-STERILE, Manufactured by: DeRoyal Industries, Inc. 200 DeBusk Lane, Powell, TN 37849, USA; Lot Number 25660996 (2) DeRoyal (R) Adult Anesthesia Circuit, REF 86-001781, Rx Only, NON-STERILE, Manufactured by: DeRoyal Industries, Inc. 200 DeBusk Lane, Powell, TN 37849, USA; Lot Numbers: 25574115, 25624514, 25661260, 25702578, 25766272, 25835901, 25835910, 25873406, 25906061, 25960681 (3) DeRoyal (R) Latex Safe Anesthesia Kit, REF 86-001641, Rx Only, NON-STERILE, Manufacturer: DeRoyal Industries, Inc. 200 DeBusk Lane, Powell, TN 37849, USA: Lot Numbers: 25573171, 25765667, 25834853, 25834861 (4) DeRoyal (R) Custom Anesthesia Kit, REF 86-001619, Rx Only, NON-STERILE, Manufacturer: DeRoyal Industries, Inc. 200 DeBusk Lane, Powell, TN 37849, USA: Lot Number 25573155 (5) DeRoyal (R) Anesthesia Kit, REF 86-001669, Rx Only, NON-STERILE, Manufacturer: DeRoyal Industries, Inc. 200 DeBusk Lane, Powell, TN 37849, USA: Lot Numbers: 25313484, 25702324, 25977977 Intended Use: Varies by kit; an anesthesia breathing circuit is a device that is intended to administer medical gases to a patient during anesthesia. It provides both an inhalation and exhalation route and may include a connector, adaptor, and Y-piece.