Waterco 2" Half Union w/O-Ring [1-1/2" Slip Trimline] (122257BLK) ussealmfg Tailpiece assemblies are useful because

Tailpiece assemblies are useful because they support heater maintenance by preserving a removable plumbing connection

Titanium element helps resist corrosion over time

That can make a real difference in baths and spas where the owner wants the controls to feel simple

Waterway union adapter

Waterco 2" Half Union w/O-Ring [1-1/2" Slip Trimline] (122257BLK) ussealmfg Tailpiece assemblies are useful becauseThe Waterco 2 inch half union with O ring for 1 1 2 inch slip Trimline applications is designed for compatible plumbing systems where the union side of the connection needs the correct model specific replacement. A half union is useful because it provides a service friendly connection point that can be separated without cutting the plumbing apart. This replacement is especially useful when the original fitting is damaged, worn, or no longer sealing