We recommend this 200L solvent tank high volume butane or propane extraction systems. These tanks can come with a dip tube or coil and have both a 6" tri clamp at the top and bottom of the vessel. This makes using the 200L ASME solvent tank convenient for both injection or recovery. Each 200L ASME solvent tank comes with a jacket for either heating or chilling. This solvent or collection tank for butane extraction is rated to -80C and 350psi.