JG Speedfit conversion connector push-fit fitting that enables imperial and metric pipes to be connected by converting the pipe size from metric to imperial. Designed, manufactured and assembled in the UK. Instant push-fit connection Install and demount in seconds without tools Safe flame-free installation, with no hot works, glue or flux Grip & Seal collet with stainless steel teeth and main O-Ring seal Non-toxic, resists corrosion and no scale build-up Compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe Suitable for hot and cold water only (not suitable for central heating systems)