This 4-Gas calibration mix comes in an aluminum 58 Liter cylinder, 500psig (8AL), and is a quad mix containing 50% LEL Methane, 20.9% O2, 10ppm H2S, 50ppm CO, balance Nitrogen. Female threads on cylinder require male threaded regulator. The mix has a shelf life of twelve months.
Note 1: Most carriers charge an extra fee for handling compressed gases.
Note 2: Calibration gas is not returnable. Please check your selection carefully before ordering.