The Flow Sensor with a 1.88 in. diameter from Rheem Mfg Company is designed for accurate flow measurement in HVAC systems. This sensor features a robust construction that ensures durability and reliability in various applications. It is engineered to provide precise readings, helping to optimize system performance and efficiency. The compact design allows for easy installation in tight spaces, making it suitable for both residential and commercial systems. This flow sensor is an essential component for monitoring water flow and ensuring the effective operation of heating and cooling systems.