3M™ Versaflo™ BT-953 cleaning and storage kit is designed to assist with cleaning and storage for the BT-63/64 breathing tubes. Two caps and one plug are provided for the openings of the BT-63/64 where they would connect to a face piece and respirator. 3M™ Versaflo™ BT-953 cleaning and storage kit is designed to assist with cleaning and storage for the BT-63/64 breathing tubes. Two caps and one plug are provided for the openings of the BT-63/64 where they would connect to a face piece and respirator. Helps protect the breathing tube from internal contamination during storage and cleaning. Versaflo™ Cleaning and Storage Kit, Series: BT Series, For Use With: 3M™ Versaflo™ BT-63/64 Breathing Tube