Check the listing for details. SWITCHDOCTOR Pool Heater Manifold Assembly With O-Rings. Condition: New. Listed at 79.99 USD. SWITCHDOCTOR Pool Heater Manifold Assembly Kit with O-Rings for Pentair MasterTemp 175, 200, 250, 300, 400 Sta-Rite Max-e-Therm SR200, SR333, SR400 77707-0205 77707-0206 77707-0014 This manifold comes with everything shown in the pictures. Simply reuse the undamaged backplate, sensors, drain plug, and bolts from your cracked stock manifold, all are relatively easy off/easy on. This manifold is a replacement for Pentair MasterTemp and Sta-Rite Max-e-Therm pool and spa heaters. This is a superior quality assembly identical in shape and function to the original manifold parts you are replacing. The 125 or 125000 is Pentair's smallest pool or spa heater. Our manifold does NOT fit the 125. The 125 uses a smaller manifold. Our manifold DOES fit all other sizes Pentair MasterTemp 175, 200, 250, 300, 400 and the Sta-Rite Max-e-Therm SR200, SR333, SR400.