BLUE MDPE WATER PIPE. YELLOW MDPE GAS PIPE. BLACK MDPE WATER PIPE. Alkathene
MDPE Blue Water pipe is. MDPE Yellow Gas pipe conforms to BS EN 1555:2010 and is approved for use with natural gas in the UK to GIS/PL2. MDPE Black non-potable water, Irrigation, & general use pipe conforms to BS EN 12201:2011/2012.