Check the listing for details. 5 x Copper Coupling Plumbing Straight Fitting Coupler Welding Connector 5/8" ID. Condition: New. Listed at 13.50 USD. MULTIPURPOSE - These copper fittings are perfect for use in HVAC and air conditioning systems, as well as in plumbing applications. They can be used to connect copper pipes and create a secure, leak-free joint. These couplings are suitable for use in both residential and commercial settings.WHAT YOU GET - The package comes with 5pcs copper fittings that measure 5/8 Inch Inner Diameter and 1 Inch LengthRELIABLE MATERIAL - Made from pure copper material, these couplings are durable and long-lasting. They are resistant to corrosion and can withstand high temperatures, making them good for use in a variety of applications. The straight design of the couplers allows for easy installation and a secure connection.