Astral UPVC Plain Flange Hub Spigot

"UPVC" stands for Unplasticized Polyvinyl Chloride, a rigid and durable type of PVC commonly used in plumbing applications due to its resistance to corrosion and chemicals. "Plain Flange" suggests that it's a flange without any additional features like threads or sockets. Flanges are used to connect pipes, valves, and other equipment to form a piping system. "Hub Spigot" refers to the type of connection. The "hub" is a female end of a fitting that is typically used to connect to a pipe, while the "spigot" is a male end that fits into the hub of another fitting or pipe.