The McAlpine Z23 Blank Cap with nut is a plumbing fitting designed to seal off an unused or open pipe end. It features a BSP (British Standard Pipe) thread and comes with a nut for easy installation and removal. The Z23 blank cap is made from high-quality materials that are resistant to corrosion and damage from chemicals commonly found in plumbing systems. The cap is designed to provide a secure and watertight seal, preventing any leaks or water damage that could occur if a pipe end is left open. The cap is suitable for use in a range of plumbing systems, including domestic and commercial installations. It is compatible with other BSP threaded fittings and pipes, and its simple design makes it easy to install and remove. Overall, the McAlpine Z23 Blank Cap with nut is a high-quality, reliable and durable plumbing fitting that provides a secure and watertight seal for unused or open pipe ends. It is easy to install and compatible with a range of other fittings and pipes, making it a popular choice for both professional and DIY plumbers. ・ Available in 1¼", 1½", and 2" sizes