Various
1/2", galvanized merchant coupling, merchant couplings are steel & threaded end to end.
Boshart 1-1/4 In. Insert x 1-1/4 In. MIP Polypropylene Hose Adapter
Compression Nut, Brass, 1/4-In.
Plumbeeze Insert Coupling
Reliance 3/4 In. NMPT x 55 In. Polymer Temperature & Pressure Relief Valve Discharge Pipe
Nibco 90° Elbow Long Radius C x C - Wrot 607-LT