The Cyl-Tec 180-HP Cryogenic Liquid Cylinder, HP Pressure, are ideal for both liquid or gas, use up to 350 PSI Maximum Allowable Working Pressure (MAWP). They are configured for liquid nitrogen (LN2) service and includes a digital fluid level gauge. They have a dent-resistant tank outer shell, all stainless steel construction, a 4-handling ring supports, heavy-duty foot ring, with round bottom, and square caster bases. They have a superior product holding time and come with a 5-year warranty on vacuum.