Product Description
GASCO 74L-413-18 | X05NI79CP750003 | CO 50 ppm, H2S 10 ppm, CH4 2.5% VOL(50%), O2 18% VOL. N2 Balance, 74 Liter Aluminum Cylinder, For Use with Any and All Gas Detectors, Cylinder Connection C-10, Calibration Certificate NIST, Made in the USA