Feature Perfectly Matched to Your Heater This manifold assembly is precision-engineered to provide an exact fit for Pentair MasterTemp (175, 200, 250, 300, 400) and Sta-Rite Max-e-Therm (SR200, SR333, SR400) pool and spa heaters. It’s your assurance of a seamless, trouble-free installation. You’ll have the perfect replacement manifold for your specific heater. Complete Replacement Kit for Effortless Installation.