Today we have some welding gas cylinders for sale. These are the 300 sizeD tanks. They have recently undergone the hydro testing process and passed. Current dates of 2021+* were stamped into each bottle. We also blasted and painted them. Then, installed new 580 valves. You can have these bottles filled with any of the following Gases: Argon, Nitrogen, Helium(Not Free!! Most Expensive!! This gas will change the final price of the Cylinder.), and C-25(75%Argon/25%CO2).Be aware, that we do not fill cylinders until we know what type of gas the customer wants. The price of each cylinder is $500.00 cash!! This price may include your choice of gas and delivery, depending on location. For more info please call, text, or shoot us an email. Thank You!! WE CAN ALSO LOCATED CYLINDERS FOR YOU THAT CONTAIN THE FOLLOWING GASES: OXYGEN ACETYLENE NITROGEN ARGON C25 HELIUM CO2 CONTACT ME FOR QUOTES https://www.linkedin.com/posts/carlos-russo-412b6361_oxygen-acetylene-nitrogen-activity-6836248698310205440-lV_9