Lennox 88K44 3/4" Sweat Suction Line Filter Drier

The Lennox 88K44 is a 3/4-inch sweat connection suction line filter drier designed for residential and light commercial HVAC systems. This critical component protects compressors by removing moisture, acids, and contaminants from the refrigerant circuit on the low-pressure side of the system.

Key Features:

• 3/4-inch copper sweat connections for secure, leak-free installation
• Suction line application for low-pressure side filtration
• Solid core desiccant blocks moisture and acids
• Metal screen filter captures particulate contaminants
• Bi-directional flow design for installation flexibility
• Compatible with common refrigerants including R-410A and R-22

Suction line filter driers are essential during system installation, compressor replacement, or after burnout cleanup to prevent contamination from damaging the compressor. The 3/4-inch size is suitable for residential systems typically ranging from 2 to 5 tons capacity. Installation requires proper brazing techniques with nitrogen purge to prevent internal oxidation.