Carrier KH43LS085 Filter Drier

The Carrier KH43LS085 is a high-capacity UniFlo R410A Filter Drier designed for critical moisture and acid removal in high-pressure residential and commercial cooling systems. This OEM Carrier replacement part is the functional successor to the legacy KH43LG085, maintaining the same 16 cubic inch desiccant volume while optimizing flow characteristics for modern refrigerants. Built with a 100% molecular sieve, it provides superior filtration down to 20 microns, effectively capturing weld spatter, metal shavings, and oxides that can lead to compressor failure or thermal expansion valve (TXV) plugging.

For technicians performing a liquid line filter drier replacement, the KH43LS085 features a 5/8" ODF sweat connection and a robust steel shell rated for a maximum working pressure (MWP) of 680 PSIG. The UniFlo refrigerant drier design ensures uniform distribution through the internal desiccant bed, preventing pressure drops that compromise system SEER ratings. Whether you are addressing a system burnout or performing routine preventative maintenance, this liquid line drier is the factory-authorized solution to ensure long-term system dehydrating and acid sequestration in Carrier, Bryant, and Payne R410A units.

Key Benefits:

• Maximum System Protection: High-density 100% molecular sieve removes moisture and prevents the formation of harmful acids in R410A systems.
• Direct OEM Compatibility: Serves as the official direct replacement for KH43LG085, ensuring precise fitment and performance without field modifications.
• Optimized Flow Design: The 16 cubic inch UniFlo architecture minimizes pressure drop across the liquid line to maintain cooling capacity.
• Industrial Build Quality: Features a corrosion-resistant finish and copper sweat connections for clean, reliable brazing during installation.
• Contaminant Filtration: Effectively traps particulates as small as 20 microns to protect sensitive TXV and compressor components.

Common Questions:

• Is the KH43LS085 compatible with older R22 systems? This specific model is optimized and rated for use with R410A refrigerant and its associated POE oils; always verify pressure ratings before retrofitting.
• Does this drier replace the KH43LG085? Yes, the KH43LS085 is the factory-designated direct replacement for the discontinued KH43LG085.
• What is the connection size for this filter drier? This unit features 5/8" ODF sweat connections, suitable for standard liquid line sizing in large residential and light commercial equipment.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.