Empty Cell (IndustrialCraft 2)

The Empty Cell is a fluid and gas storage device added by IndustrialCraft 2.

Recipe
Empty Cells can also be made by extracting Compressed Air Cells:

Usage
Empty Cells can be used to craft Compressed Air Cells, Weed-EX and certain machines. They can also be filled with any IndustrialCraft 2 Fluids.