Quicker, Consistent Quality Installation;Fewer Leak Paths;Allows for Easy Cleaning or Flushing of System;Allows for One Person Diagnostic Testing;Also for Use with Wall Hung and Combi Boiler;Saves 108 Minutes;Replaces 14 Components;Eliminates 12 Leak Paths;Ball valve with integral spring check saves labor, space, and leak paths;Adjustable Packing Gland;Models available to satisfy all state and federal low-lead laws;Available in SWT, PRS;Available in FIP Union x FIP, FIP Union x SWT