RKI H2S 25 ppm / CO 50 ppm / Propane 50% LEL (1.05% vol) / O2 18% in N2 34AL Calibration Cylinder Part# 81-0163RK-04 Bonded Tubing the ampoule must be broken
SKU: 34587934902
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Ships within 48 hours · Estimated delivery Nov 12 - Nov 17