The Mueller Industries A17939 is a high-performance 7/8" Magnetic Check Valve designed for critical backflow prevention in commercial refrigeration and air conditioning systems

Facilitates a streamlined field conversion process

Calibrated Pressure Range: Precisely engineered for a 3-6 psig operating range

When performing a furnace heat exchanger inspection

ensuring seamless electrical and mechanical integration into existing control loops

Browning 2TB80 Sheave 319852-301 The Mueller Industries A17939 isThe Browning 2TB80 Sheave is a precision engineered 8. 35" outside diameter drive component designed for heavy duty HVACR and industrial power transmission. This two groove TB Gripbelt sheave is manufactured from high grade cast iron, ensuring structural integrity under high torque loads. Designed for use with Q1 series bushings, it provides a secure, concentric fit on the shaft, reducing vibration and extending bearing life. This versatile sheave is