Double Female Connector: Double female brass swivel connector has internal thread size 3/4 Inch GHT x 3/4 Inch NPT, which is made with precision process, please do check the thread size carefully before purchasing to make sure it's right adapter you need. Quality Material: Garden hose swivel connector adapter is mainly made of soild brass, sturdy and corrosion-resistant materials are long time to use, which is not easy to get rust or broken, the rubber gaskets can prevent friction. Easy to Connect: Brass swivel connectors are easy to install by hands without any tools, which can match the 3/4 inch to 3/4 inch garden hose easily, allowing quick connection and disconnection, not easy to leak.