Honeywell Residential K06U1045 2" NPT Union Kit For D06 & FK06 Valves

The Honeywell Residential K06U1045 Union Kit Valves is a pipe connection used to join and separate 2-inch DS06 and FK06 valve assemblies in water regulation systems. It includes a union nut, internally threaded tailpiece, and sealing gasket that work together to create a tight threaded interface for NPT connections. In HVAC systems it is applied within pressure-regulating valve setups used in domestic and light commercial water distribution lines. The kit is positioned at valve junction points to allow controlled assembly and disassembly without disturbing the surrounding piping layout, supporting maintenance access in heating and water control circuits.