Went by my local Tractor supply. They have the following tank sizes:MarkL wrote:Tractor supply by us only has small tanks, maybe by you it's different. I'd compare prices, make sure they aren't going to rob you on the refill cost.
Oxygen: 20, 40, 80, 125, 251, and 390 cu. ft.
Acetylene: 10, 40, 75, and 145 cu. ft.
I'm thinking the 251 cu/ ft. oxygen and the 145 cu. ft. acetylene.
Prices for the same size acetylene fill are the same at the welding supply place and tractor supply: $59.99 and $60.00
The oxygen at tractor supply is twice as much. $21.00 vs. $42.00. Tractor supply is a 25 minute round trip, welding supply is a 90 minute round trip-downtown. I hate downtown. Much rather support a local welding supply place-but wow the inconvenience in this case might be too much to overcome. I could see being in the middle of a project, running out of gas on a Friday!