Usage Tips:5 Pack 3/16 Inch Brake Line Adapter Copper Compression Fitting for Trailers Trucks Features： 1、Premium Quality Copper Material Manufacturing: Made of precision cast premium-quality brass, ensuring excellent corrosion resistance and durability. Even in harsh environments, it can maintain good sealing performance and extend its service life. 2、Universal 3/16 Inch Size: Precisely designed for brake pipelines with a diameter of 3/16 inches, widely applicable to hydraulic brake systems of various trucks, trailers, and heavy machinery, providing standardized and reliable connection solutions. 3、Easy to Install: The unique design allows for quick and easy on-site installation, without the need for special tools. Assembly can be completed with simple step, greatly saving maintenance and modification time. 4、Safe and Reliable Sealing: Good sealing ability, effectively prevent fluid leakage, ensure the stability and safety of the braking system, and provide a solid support for your driving safety. 5、5 Pack Set: The Package includes 5 pack compression connectors, meeting your repair, replacement or system upgrade needs. It is also suitable as a spare inventory to respond to emergencies at any time. Specification： Item: Compression Tube Fitting Material: Copper Color: Golden Package Size:?12*10*1cm Package Weight: 85g Package List： 5* Compression Tube Fitting