3M™ Versaflo™ Cleaning & Storage Kit BT-953, for BT-63/64 Breathing Tubes 1/Case 3M™ Versaflo™ BT-953 Cleaning and Storage kit is designed to assist with cleaning and storage for the BT-63 and BT-64 breathing tubes. Two caps and one plug are provided for the openings of the BT-63 and BT-64 where they would connect to a facepiece and respirator. Enables BT-63 and BT-64 Breathing Tubes to be submerged for cleaning. Helps protect BT-63 and BT-64 Breathing Tubes from internal contamination during cleaning. Kit for cleaning & storage Suitable for 3M™ Versaflo™ Breathing tubes, BT-63 and BT-64