Check the listing for details. 5pcs 28mm Compression Sleeves Ferrules Copper Ferrule Compression Fitting. Condition: New. Listed at 12.45 USD. This compression sleeves ferrule is widely used in pipe connection for hydraulic and pneumatic systems, HVAC, humidifiers, etc., and suitable for connecting copper, brass, aluminum, or plastic tubing.Specification:Color: Copper ToneMaterial: CopperHole Inner Dia: 28mm / 1.1 inchSuitable for connecting 28mm (1.1 Inch) outer diameter copper pipe.Total Size: 30 x 8mm / 1.18 x 0.32 inch (D*H)Packing List: 5 Pack x Ferrule FittingsAdvantage:The copper ferrule fittings are made of copper, good thermal conductivity.These ferrules have a smooth surface and provide a good seal, providing a secure connection for pipe connections.Instruction:Insert the copper pipe with appropriate diameter into the sleeve, then fixing it to pipe connectors with nuts.NOTE: Please confirm the pipe size before purchasing.