The Trane FLR6465 Prefilter is a critical OEM replacement component engineered specifically for high-efficiency filtration systems

This specific configuration with bronze trim is primarily designed for water-based applications

Rotate the minute hand clockwise until the time arrow on the center of the dial aligns with the current time on the outer 24-hour ring

Key Benefits: Integrated ORD Functionality: Automatically bypasses hot gas to the receiver to ensure immediate high-side pressure recovery

As a high-performance draft inducer replacement

Lochinvar & A.O. Smith 100227399 Pressure Switch 321042-401 The Trane FLR6465 Prefilter isThe Lochinvar & A. O. Smith 100227399 Pressure Switch is a critical safety component engineered for precise combustion air pressure sensing in high efficiency boilers and water heaters. As a normally closed (N. C.) pressure switch factory set to 2. 12" WC (Water Column), this OEM replacement part ensures the inducer motor is moving sufficient air for safe ignition and sustained burner operation. When troubleshooting a pressure switch stuck closed or