RKI Calibration Gas Cylinder, H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 29AL by RKI Industries Cylinder, H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 29AL (cylinders for RKI Instruments, SEE NOTE).
SKU: T-RKI-81-0154RK-08