GASCO Hydrogen Pure Gas 99.999% contained in a 552 Liter Disposable Steel Cylinder, For Use with Any and All Gas Detectors, Cylinder Connection: CGA 350, Calibration Certificate NIST, Made in the USA

THIS HYDROGEN PRODUCT ONLY SHIPS TO CONFIRMED BUSINESS ADDRESSES, NOT ABLE TO SHIP TO A RESIDENTIAL ADDRESS. THIS PRODUCT IS FOR CALIBRATION USE ONLY. IT IS NOT FOR WELDING, FILLING BALLOONS, OR ANY PERSONAL USE.