Waterway 1.0 HP Hi Flo Spa Pump Side Discharge Wet End [2" MBT x 2" MBT] [48 Frame] (310 1130SD) jjelectronics 0 kW Spa Heater Assembly 0 kW Spa Heater Assembly W Pressure Switch [240V] [2"] (50142) (G7416) is engineered with a clear focus on service diagnostics accuracy The Praher SM2 HP3 multiport valve is intended for compatible 2 inch Hayward style plumbing systems and helps restore the primary routing control of the filter setup this Waterway wet end is a practical replacement when the full wet side assembly with 2 inch MBT x 2 inch MBT connections needs to be renewed A wet end like this is useful because it restores the complete hydraulic side of the pump while preserving important connection and frame specific details