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PK Safety Hydrogen Sulfide Single Gas 25 ppm, balance Nitrogen is a calibration gas contained in a 34 Liter aluminum cylinder. It is fully compatible with calibration H2S sensors, equipment and monitors such as the BW Solo, Clip 2 Year. Made in the USA.
Note: This item ships via UPS Ground due to HazMat restrictions and isn't available for expedited shipping. Calibration gas is not returnable. Please check your selection carefully before ordering.