Armstrong Fluid Technology 812961-111 Impeller Refrigerant The Trane GER0139 Drive Gear

The Trane GER0139 Drive Gear is a critical power transmission component designed for seamless integration within HVAC air handlers and compression systems

Reduced Maintenance: High-quality construction minimizes limit switch failure

By providing a reliable signal to the control board

The Lennox 57M67 Pressure Switch is a high-precision OEM component engineered for critical safety monitoring in gas-fired furnaces and HVAC systems

Standardized Porting: Features a high-integrity 1/4 inch barb for a secure vacuum hose seal

Armstrong Fluid Technology 812961-111 Impeller Refrigerant The Trane GER0139 Drive GearThe Armstrong Fluid Technology 812961 111 Impeller is a precision engineered Noryl plastic impeller specifically designed to restore the hydraulic performance of your Armstrong S 25 circulator pump. This non ferrous plastic component is an essential HVAC replacement part used in heating and cooling systems where resistance to corrosion is paramount. With an outside diameter of 2 3 4 inches, it is manufactured via high quality injection molding to