Resideo - Honeywell Home K06U5042 Union KitResideo Honeywell Home K06U5042 is a 2 inch Union Kit for D05 Sweat Valves. This essential replacement part from the Resideo and Honeywell Home family delivers a secure connection for D05 valve assemblies in residential HVAC systems. It fits standard D05 sweat valve bodies, enabling a straightforward swap during routine maintenance or after a valve upgrade. Designed to integrate seamlessly into the Honeywell Home ecosystem, the K06U5042 helps

Durable material for extended service life

predictable response times

and agricultural applications

it continuously monitors flame presence to prevent gas leaks and ensure efficient ignition in your duct furnace

300 VA @ 120–277 VAC

Dual gas igniter and electric ignition control provide fast

This assembly is built for durability and consistent performance

and extends the life of components

Applications: Gas

and a durable plastic body

It supports Auto/Manual Changeover and offers 1-Heat/1-Cool operation for flexible comfort in a wireless thermostat designed for heat pump or conventional systems

Safety/operation: Safety shut-off