ExpoSure - Biological Indicator for use in the STERRAD® Sterilizer Item Number: EXPO/6 Rollover to Zoom Please Log In For Price Tax Amount Details ExpoSure - Biological Indicator for use in the STERRAD® Sterilizer. Geobacillus stearothermophilus #7953. Contents: 30 biological indicators, 1 crusher See MoreSee Less