The McAlpine R33 ¾" Tank Lid Adaptor is a plumbing component designed to provide a secure and reliable connection between a water storage tank and an expansion pipe. It is commonly used in residential and commercial plumbing applications to ensure that water storage tanks remain properly pressurized and free from leaks. The R33 ¾" Tank Lid Adaptor is made from high-quality polypropylene material that is resistant to chemicals and corrosion. It is designed to be fitted onto the top of a water storage tank and secured in place using a suitable lid or cover. The adaptor features a ¾" expansion pipe connection, which allows for the easy connection of an expansion pipe. One of the key features of the McAlpine R33 ¾" Tank Lid Adaptor is its compatibility with a wide range of water storage tanks. It is suitable for use with tanks made from various materials, including plastic, steel, and concrete. This makes it a versatile and reliable plumbing component for a wide range of plumbing applications. The McAlpine R33 ¾" Tank Lid Adaptor is also designed with a sealed expansion pipe connection, which prevents leaks and ensures 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 R33 ¾" Tank Lid Adaptor is a reliable and durable plumbing component that is essential for maintaining the proper pressure and integrity of water storage tanks. Its compatibility with a wide range of tanks, along with its sealed expansion pipe connection, make it an excellent choice for a variety of plumbing applications. ・ WRAS approved