Stainless Steel Condensing Coils Xtra Roto Part This protects your vacuum pump

This protects your vacuum pump and captures any vapors that were lost during evaporation or distillation

So if you have the BVV 4 Cylinder pump you would need two kits

It is a common choice for extracting natural products and essential oils

Resources:

E-grade "Professional" include

Stainless Steel Condensing Coils Xtra Roto Part This protects your vacuum pumpBVV SS304 Condensing Coils are used in solvent injection kits such as the one show in the video below. They are used to condense ethanol or other hydrocarbons to decrease run times and allow for a pre chilling of the solvent to be used in the extraction processes. For dry ice applications please make sure condensing coil is free of any water moisture as it will freeze and restrict block flow when submerged in dry ice. To clear the condensing coil blow