"Never pay lease or rent charges again Brand new industrial-grade welding gas cylinder has never been filled. Refillable and exchangeable. Used for MIG welding applications where a 75 argon/25 CO2 shielding gas is required. Works well with Hobart Handler MIG welders. Product Type Cylinders, Valve Type CGA 580 female, Compatible With Argon and shielding gas, Diameter in. 7, Capacity cu. ft. 125, Dimensions L x W x H in. 7 x 7 x 43, DOT Approved Yes. #4 size Empty For MIG welding applications where a 75 argon/25 CO2 shielding gas is required Works with Hobart Handler MIG welders"