What is the difference between the P70DA-400 and P70CA-400

and various Z-series units

3-13/16 inches in height

the A-F579213 is designed for use with standard HFC and HFO blends

Double Inlet Configuration: Enhances air intake volume

Armstrong Furnace R100305-02 Fan Guard 322838-752 What is the difference betweenThe Armstrong Furnace R100305 02 Fan Guard is a critical OEM replacement part designed to ensure the safe and efficient operation of your HVAC system's outdoor condensing unit. Engineered for durability, this heavy duty condenser fan grill provides a robust protective barrier for the fan blades, preventing debris infiltration and accidental contact while maintaining optimal airflow. Compatible with various Armstrong Air and Concord models, the R100305