5 gallon mold. For A, B, and C type 5 gallon cap. 2738 for core, P20 for base. HRC48-51.life: 3,000,000 time 5 Gallon Cap ... Moldfor A, B, and C type 5 gallon cap2344 HRC50-52 for core, P20 for base. , mold life: 3,000,000 times, 4 ... runner design assures uniform heating and improves the plastic product quality greatly;5. High efficiency is attained with water cooling at normal temperature.