RKI Calibration Gas Cylinder, H2S 25 ppm / CO 50 ppm / HEX 15% LEL / O2 12% in N2, 58AL by RKI Industries Cylinder, H2S 25 ppm / CO 50 ppm / HEX 15% LEL / O2 12% in N2, 58AL (cylinders for RKI Instruments, 7 MTHS).
SKU: T-RKI-81-0155RK-02