AGS Fitting Assortments are designed for specialty and general repair shops. Each assortment contains a specific collection of fast moving fittings that should be kept on hand when working with automotive hydraulic braking systems. Assortments are packaged in shatter-resistant, see-through plastic trays. Locator labels on the inside lid make locating, selecting, and re-filling quick and easy. Union Assortment – 8 SKU. An assortment of 8 brass unions for joining all types of brake and fluid transfer lines: Domestic 3/16″, 1/4″, 5/16, 3/8″, Japanese, European, British, and 6mm.