This easy-to-read cylinder content gauge is made of powder-coated steel. The halo handle makes it easy to carry while offering maximum strength & protection. This product offers a patented one-piece, anodized, light-weight aluminum design. It delivers 50 psi constant flow through a DISS port. No shut-off valve is required with the CGA540 fill port with check valve. All units 100% tested and serialized before shipping. O2Go passed ASTM-G175 ignition tests.
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