This JG Speedfit 15Tkp is a push-fit plastic fitting designed for connecting plastic and copper pipes. Installation is simple: push the fitting fully onto the pipe and twist the plastic nut clockwise to lock. To demount, unlock the nut and push the collet towards the fitting's body while pulling the pipe. This fitting offers an easier working environment in confined spaces and eliminates the need for hot works. Installation time can be reduced by approximately 40% compared to traditional methods. A relevant manufacturer’s pipe insert is required for all plastic pipes. The connector allows pipe runs to be branched off an existing pipe run without affecting the current setup, making it ideal for adding radiators or other applications during renovations. Features include an instant push-fit connection, installation and demounting in seconds without tools, safe flame-free installation, grip and seal collet with stainless steel teeth and main O-Ring seal, and a twist and lock cap for secure compression. It is non-toxic, resists corrosion, and prevents scale build-up. Compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe, it is suitable for hot and cold water and central heating systems.