Description
Carrier KH43LG073 Liquid Line Filter Drier Overview
The Carrier KH43LG073 is a liquid line filter drier designed to protect refrigerant systems by removing moisture, acid, and particulate contaminants from the refrigerant circuit. Featuring 3/8″ sweat (solder) connections, this filter drier is engineered for straightforward installation in residential and light commercial HVAC systems where Carrier OEM-quality components are required.
Key Features
- 3/8″ sweat (solder) connections for secure, leak-free installation
- Removes moisture, acid, and solid contaminants from the liquid line
- Helps protect compressors, expansion valves, and other system components
- Genuine Carrier OEM replacement part
- Designed for use in residential and light commercial refrigerant systems
- Compact form factor for easy integration into existing linesets
Why Use a Liquid Line Filter Drier?
Liquid line filter driers are a critical component in any refrigerant system. Installed in the liquid line between the condenser and the metering device, they capture moisture that can cause freeze-ups, acid that can corrode copper tubing and compressor windings, and particulates that can clog expansion valves or TXVs. Replacing the filter drier during every service event — especially after a compressor burnout or system opening — is a best practice that extends equipment life and maintains system efficiency.
Application
- Carrier residential and light commercial split systems
- Replacement during routine maintenance or system repair
- Post-compressor burnout cleanup procedures
- Any system requiring a 3/8″ sweat liquid line filter drier
Specifications
- SKU: KH43LG073
- Brand: Carrier
- Connection Type: Sweat (Solder)
- Connection Size: 3/8″
- Filter Drier Type: Liquid Line







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