Lennox 12L71 Liquid Line Filter Drier - 3/8

The Lennox 12L71 is a 3/8-inch liquid line filter drier designed for use in residential and light commercial HVAC systems. This critical component removes moisture, acids, and contaminants from refrigerant lines to protect compressors and ensure optimal system performance.

Key Features:

• 3/8-inch ODF (flare) connections for liquid line installation
• Solid core desiccant provides superior moisture removal and acid absorption
• Bi-directional flow design allows installation in either direction
• Steel shell construction with copper connections for durability
• Compatible with R-22, R-410A, and other common refrigerants
• Designed for use in air conditioning and heat pump applications

Filter driers are essential maintenance components that should be replaced during system repairs, refrigerant recovery, or when moisture contamination is suspected. Proper installation in the liquid line between the condenser and metering device helps prevent costly compressor damage and maintains system efficiency.