Pentair 27001-0016S Lower Half Tank Replacement Sta-Rite System 2 Modular Pool and Spa D.E. Filter Lower half tank replacement Fits Pentair Sta-Rite System 2 modular pool and spa D.E. filters models PLDE36-DE, PLDE48-DE, PLDE70-DE Includes diverter, drain plug and safety latch