MSA 10048981 Equivalent by GASCO, 60 PPM CO, 50% LEL CH4, 20 PPM H2S, 15% O2 Balance Nitrogen contained in a 34 Liter Disposable Aluminum Cylinder, For Use with Any and All Gas Detectors, Cylinder Connection C-10, Calibration Certificate NIST, Made in the USA
SHELF LIFE: 24 Months