Specification Brand : 3M Label : 3M Health Care Manufacturer : 3M Health Care PartNumber : 36556 ProductGroup : BISS Basic ProductTypeName : LAB_SUPPLY Publisher : 3M Health Care Size : 1 Count (Pack of 1) SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41-j10NW9IL._SL75_.jpg SmallImage_Width : 75 Studio : 3M Health Care Title : 3M LITTMANN TUNABLE DIAPHRAGM & RIM ASSEMBLY