... pipesLong Life: over 50 years under proper use PE/Al/PE Pipe for Hot Water Supply Size(mm)Pressure Rating ( ... 50,1001819530,50,1002019530,50,1002519530,50,1003219530,504019524 PE/Al/PE Pipe for Cold Water Supply Size (mm)Pressure Rating ... ,50,100251.256030,50,100321.256030,50401.256024 PE/Al/PE Pipe for Gas Supply Size(mm)Pressure Rating(MPa) ... .43530,50400.43524 PEX-AL-PEX alumium plastic composite pipe