Check the listing for details. 100Pcs Tube OD 3/16" Brass Compression Sleeves Ferrules. Condition: New. Listed at 15.78 USD. Brass compression sleeves ferrules 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: BrassInner diameter:3/16", Height:5.5mmOuter diameter:7.4mmPacking list:100x Brass Compression Sleeves FerrulesAdvantagesMade of brass material, it is durable, corrosion-resistant and not easy to rust, and can be used for a long time. These sleeves have a smooth surface, can be re-assembled many times and ensure a tight fit without affecting the sealing. The product quantity is sufficient to meet your replacement or spare needs and save costs.InstructionsEasy to use, this brass compression kit can be connected to copper, brass, aluminum or plastic pipes.