Our product is clean, colorless, and non-odorized while being free of any hydrogen sulphide-based ethyl mercaptan odorants. We perform continual and on-going 3rd party testing to ensure that our products always meet our high-quality standards. Currently, this product has an ULTRA HIGH PURITY of 99.995%.
These cylinder tanks are the new DOT-APPROVED 4BA-400 cylinders. Each cylinder is equipped with an internal liquid siphon dip tube with 1 liquid port (red) and 1 vapor port (blue). The liquid port is attached to the internal liquid siphon dip tube. The size and type of the valve connections are 1/4″ male SAE flare fittings. These cylinder tanks are refillable and are part of our Tank Exchange Program.