RKI H2S 20 ppm / CO 60 ppm / CH4 58% LEL / O2 15% in N2 34AL Calibration Cylinders Part# 81-9013RK-01 RKI By the way
Yard notes & kiln story
Description
RKI H2S 20 ppm CO 60 ppm CH4 58% LEL O2 15% in N2 34AL Calibration Cylinders Part# 81 9013RK 01 RKI By the way By the way Width 46 cm (18 in)