This part is a Tee that is 2"Slip x 3/4" FPT x 2" Slip.. This part is usually found in plumbing with spigot screwed into it.. Note there are 2 Spigot sizes 3/4" and 1/2" Threaded..
This part is a PVC Tee, 2"s x 2"s x 1"s.. You can make your connection back to the small side using the below kits.. Connect kit for 1" Soft pipe Click Here.. 1" Connect Kit