This is an all in one POU water cooler install rail kit with filter that includes a pressure regulator, a one way valve and an adjustable water block leak prevention device and filter.
All the components are WRAS approved - this rail is intened to be fitted to a suitable mains drinking water supply that links your water filter to the water cooler.
The kit includes: Double check non return valve, this is a legal requirement and prevents contamination from back flow. Pressure regulator, no more pressure build worries. Shut off tap. turn the tap and shut off the water. Water block, anti flood protection safety shut off system John Guest reducer to 1/4" push fit, and the kit is also supplied with 3 metres of 1/4" OD pipe and water filter.