Resideo NK300S-100UP Boiler Feed R-407C please verify if your specific

please verify if your specific installation requires the reuse of the existing shaft extension or set screws based on the current assembly condition

indicating internal port leakage

specifically tailored for 12" high by 20" wide duct configurations

always verify the unit's rating plate for approved heater kit models before installation

The TE-703-D-1-A-3 typically ships with two-wire pigtail terminations for the 100 Ohm Platinum RTD

Resideo NK300S-100UP Boiler Feed R-407C please verify if your specificThe Resideo NK300S 100UP Boiler Feed Combination Valve is a comprehensive solution for managing closed loop hydronic heating systems. This high performance assembly integrates a pressure reducing valve, a double check backflow preventer with an atmospheric vent, and a 200 micron stainless steel strainer into a single, compact brass body. Engineered for professional contractors, the NK300S 100UP features 1 2 inch union press fittings to accelerate