This disposable ECG leadwire box of 10 is available for use with Spacelabs: 90309, 90367, 90367 Ultraview, 90369, 90369 Ultraview, 90492, 90496, 90496 Ultraview, 91220 mCare 300, 91369, 91496, 93300, Elance Series, Ultraview, Ultraview SL.