Measurement Calibration: Includes easy-to-read capacity marks in liters and gallons for precise product mixing and inventory tracking

The Resideo 4074ETH Flow Switch is a critical sensing component engineered specifically for F50 and F58 Series Electronic Air Cleaners

Designed for inline horizontal piping

Extended Component Longevity: Reduces sideloading on the blower motor bearings and prevents premature belt fraying

For technicians performing electric heat strip replacements

Heil Quaker ICP 611891 Relay 321894-709 Measurement Calibration: Includes easy-to-read capacityThe Heil Quaker ICP 611891 Relay is a high performance combustion air relay specifically engineered for International Comfort Products (ICP) heating systems. Primarily utilized in gas and oil fired applications, this 24V furnace relay (Potter & Brumfield KUMP 12AT8 24) acts as a critical switching interface between low voltage signals and high power combustion components. As a genuine OEM HVAC replacement part, it ensures precise timing and sequence