4 cavity 5 gallon preform mould or thick wall preform mould mainly designed for the water dispenser or water cooler, The prefrom mould has balanced hot runner system with shut off valve gate, it ensure the quality of injection molded thick wall performs or 5 gallon performs. The thread plates are slide by the cam roller system; it is free of the maintenance. This 5 gallon preform mold is designed for MEGA's injection molding system. The weight of the preforms is 700g,