Laboratories Rheostat with 4 mm Socket Terminal is provided with a layer of oxidized resistance wire is wound on a porcelain tube which is supported by end supports. The Laboratories Rheostat is designed with a sliding contact and 4 mm socket terminals which are provided in the structure of it. The Laboratories Rheostat is made using quality grade raw material which ensures optimum durability along with long lasting trouble free service. Laboratories Rheostat with 4 mm Socket Terminal is application specific in design and accurate in dimension.