AquaHeat Pex-B pipes are manufactured from special HDPE resins. The cross-linking is performed in a state of the art Silane accelerator post extrusion resulting in an excellent and even cross-linking. The cross-linking renders the pipe improved mechanical process such as resistance to corrosion, pressures at high temperature, superb abrasion and chemical resistance. Product is coated with EVOH barrier which prevents oxygen from entering the system through the pipe wall. Products are manufactured in red color. AquaHeat Pex-B pipes can be used with the following ASTM fitting systems; F2159, F1807, F1960, and F2080. Twenty-five year manufacturers warranty applies