This 3 Horse Power 10.0/3.5 Amp (2) Speed 56 Frame Complete Pump is a intertek LX Brand Pump. These pumps usually have the part number WUA-300-II, WP-300-II or LP-300-II on the label. Watch the video for instruction on how to Identify this pump and also how to determine if this is the correct pump. It is about 7 1/4"" across the face of the pump, it measures about 7 3/8" from the bottom to the top of the pressure side of the volute, it also measures 15" from the back to front edge. The Suction and Pressure side thread fittings are called 2" x 2" but measure 3" from the edge of the thread to the edge of the thread. 

NOTE: This Pump looks a lot like an Aqua-Flo and a CMP Pump and they will interchange if you replace the entire pump! 

If your original Wet End has a Bleeder Barb and the heads of the Bleeder Screws in your old wet end have a spot for a flat screw driver you will need a new bleeder barb... If the original has a wing nut style you already have the newer style bleeder barb and will only need a new one if your original one breaks..

Click this link for the new Style Bleeder Barb: Barbed Bleeder Plug WUA Intertek LX 48 or 56 Frame Wet End Fine Threads