The McAlpine R8A ¾" 90° Female Overflow Coupling with loose nut is a plumbing component designed to connect two pieces of overflow pipe together at a 90-degree angle. It features a 90-degree female coupling with a ¾" connection and a loose nut, which allows for easy installation and disassembly. The R8A ¾" 90° Female Overflow Coupling with loose nut is made from high-quality polypropylene material that is resistant to chemicals and corrosion. It is designed to be used with overflow pipes that have a ¾" male connection, allowing for a secure and leak-free connection between the two pipes. One of the key features of the McAlpine R8A ¾" 90° Female Overflow Coupling with loose nut is its versatility. It can be used in a wide range of plumbing applications where two pieces of overflow pipe need to be connected together at a 90-degree angle. Its loose nut design also makes it easy to install and remove, which can be particularly useful in situations where regular maintenance or repair is required. The McAlpine R8A ¾" 90° Female Overflow Coupling with loose nut is also designed with a sealed connection, which helps to prevent leaks and ensure that the water storage tank remains properly pressurized. This feature helps to prevent damage to the tank and the surrounding plumbing system, and also ensures that the water supply remains safe for use. Overall, the McAlpine R8A ¾" 90° Female Overflow Coupling with loose nut is a reliable and durable plumbing component that is essential for maintaining the proper pressure and integrity of water storage tanks. Its versatility and ease of installation, along with its sealed connection, make it an excellent choice for a variety of plumbing applications where two pieces of overflow pipe need to be connected together at a 90-degree angle.