This part is a Union Tee, Balboa Vico Ultima/UltraFlo, 1-1/2"fbt x 1"slip x 1"slip.. This part is usually found in a garden bathtub setup not a hot tub in your backyard..
The threaded Pump...
This part is a Pump Face for a Vico Ultima Side Discharge wet end that is 2" which measures about 3" edge to edge across the threads..
The Seal Kits for this pump can be found here: Vico
This pump is a Vico 48 Frame 115V 1.0-1.5HP 2 Speed replacement pump.The connections on this pump are 2" x 2" which measures about 3" Edge to edge on the threads..