Helium tank cylinders are typically made of aluminum. Cylinders made with aluminum are around 40 percent lighter than steel-manufactured tanks. Westwinds is a familiar brand of helium cylinders and weighs about 14 to 40 LBS.
| Westwinds Aluminum Cylinders | Weight |
| 27 Cubic Foot Tank | 14 LBS |
| 55 Cubic Foot Tank | 26 LBS |
| 125 Cubic Foot Tank | 40 LBS |
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