Cross-reference your model number or part list to ensure the pitch and diameter match your specific tonnage requirements

Full Compatibility: Rated for HCFC

Common Contractor Questions What are the signs that an S500 series controller needs this relay pack

a high-performance 3/4 inch N/C gas solenoid valve engineered for precision and safety

Engineered with a heavy-duty ASTM grade cast bronze body

Armstrong Fluid Technology 216944-300 326058-757 Cross-reference your model number orThe Armstrong Fluid Technology 216944 300 is a high performance Pressure Water Reducing Valve designed for precision in commercial and residential HVAC hydronic systems. This Armstrong RD 11T S model features a robust brass body construction, ensuring long term durability and resistance to corrosion. Engineered with a 1 2" NPT Union Inlet and a 1 2" Female NPT outlet, it simplifies installation in tight piping configurations. The valve is pre