Fitting Assortment Description 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. Compression Union Assortment - 6 SKU An assortment that contains 1/8", 3/16", 1/4", 5/16", 3/8", and 1/2" compression unions for joining copper, brass, or aluminum tubing in low-pressure applications (not for use in braking systems). Specifications Compression Sleeve Inside Diameter: assortmentEnd 1 Type: RingEnd 2 Type: RingFinish: BrassMaterial: BrassSAE Approved: YesThread Type #1: SAE