Check the listing for details. 100Pack 5/16" Brass Compression Fittings Compression Insert Tube Fitting. Condition: New. Listed at 14.52 USD. Brass compression fittings are primarily used in plumbing and light industrial applications,as well as some home repairs, and their wide range of capabilities makes them a solution for a variety of compression fitting needs.SpecificationColor: BrassMaterial: BrassOuter Diameter:5/16" Inner Diameter:5mm/0.2"Tube Diameter:5.8mm/0.23" Total Length:14mm/0.55"Packing List:100x Brass Compression InsertsAdvantagesMade of brass material, durable, corrosion-resistant and not easy to rust, and can be used for a long time. These sleeves have a smooth surface and can be re-assembled many times to ensure a tight fit without affecting the sealing. The product quantity is sufficient to meet your replacement or spare needs and save costs.