JG Speedfit cold water service imperial converter push-fit fitting is used to a convert metric size MDPE fitting for use with imperial size LDPE to BS1972 Class C or Class D. Supplied with inch size pipe insert. The stem cannot be disconnected from mating connector with a collet cover fitted. Designed, manufactured and assembled in the UK. Instant push-fit connection and screw down mains stop valve. Install and demount in seconds without tools. Stainless steel teeth grab ring provides extra grip on the pipe. Durable material with high impact resistance. Non-toxic and no scale build-up. Resists corrosion and biological growth. Compatible with MDPE pipes only (inserts provided). Suitable for cold water use only.