MSA 34ltr Calibration gas part number 10048280 by MSA Qty: 1 2 3 4 5 6 7 8 9 10 Price $275.00 MSA Calibration gas Cylinder content is CAL GAS 4-GAS Pentane Simulant 58% LEL, 60PPM CO, 20PPM H2S, 15% O2 - 34L