Lennox X7782 – DiversiTech DAD083S liquid line filter drier is an OEM-approved HVAC component designed to protect air conditioning systems from moisture, acids, and solid contaminants that can damage critical components. Installed in the liquid line, this filter drier helps ensure clean refrigerant flow, stable system operation, and extended compressor life.

This model features an 8 cubic inch high-capacity desiccant core that effectively absorbs moisture and neutralizes acids created during normal operation or after system service. The 3/8 inch ODF solder connections allow for secure brazed installation, making it suitable for both new system installations and replacement during repairs or compressor change-outs.

Designed for use in 1 to 2.5 ton residential and light commercial air conditioning systems, the Lennox X7782 filter drier supports consistent cooling performance and helps prevent refrigerant restrictions that can lead to efficiency loss or premature component failure. Its compact design allows for easy installation in tight equipment spaces.

Common applications include system startups, refrigerant circuit cleanups, and preventative maintenance to protect compressors, expansion valves, and metering devices. This filter drier meets HVAC industry standards and is compatible with common refrigerants used in modern air conditioning systems.

Specifications summary:

Brand: DiversiTech
Lennox catalog number: X7782
Manufacturer part number: DAD083S
Type: Liquid line filter drier
Desiccant volume: 8 cubic inches
Connection size: 3/8 inch ODF solder
System capacity: 1–2.5 tons

Lennox X7782 – DiversiTech DAD083S liquid line filter drier is a reliable choice for HVAC professionals and system owners looking to maintain system efficiency, protect internal components, and ensure long-term performance.