Carrier KH43LG072 Puron Drier

The Carrier KH43LG072 is a high-capacity liquid line filter drier specifically engineered for Puron R-410A residential and commercial systems. This factory-authorized component provides critical protection for the compressor by capturing moisture and contaminants that can lead to acid formation and oil breakdown. With a 16-cubic-inch desiccant volume and a 20-micron filtration rating, the KH43LG072 ensures the HVAC system efficiency required for modern high-SEER equipment. As the direct replacement for 033084-00 and 322937-312, this bi-flow drier features 3/8-inch ODF solder connections, making it a drop-in solution for heat pump and air conditioning applications. Whether you are performing a seasonal preventative maintenance check or a full system repair, utilizing this genuine Carrier replacement part maintains the integrity of the refrigeration circuit. Its rugged steel construction and 700 PSI maximum operating pressure rating make it a reliable choice for technicians prioritizing long-term field performance over generic alternatives.

• Factory-Authorized Fit: Serves as the precise direct replacement for 033084-00, eliminating the need for field modifications or piping adjustments during installation.
• High-Efficiency Filtration: Provides 20-micron moisture and contaminants removal to protect sensitive metering devices like TXVs and EEVs.
• Bi-Flow Capacity: Optimized for heat pump applications, ensuring consistent refrigerant drying in both heating and cooling modes.
• Optimized for R-410A: Rated for a maximum working pressure of up to 700 PSIG, specifically for Puron R-410A high-pressure environments.

Is the KH43LG072 compatible with standard R-22 systems?
While designed for Puron R-410A, this drier is often rated for multiple refrigerants including R-22 and R-404A; however, it is best practice to use it as a Carrier KH43LG072 OEM replacement in high-pressure R-410A circuits where its 16 cu. in. capacity is required.

Can I use this on a heat pump system?
Yes, this is a bi-flow drier, meaning it is engineered to handle the reversing flow of refrigerant common in heat pump cycles without bypassing the desiccant core.

What are the connection specifications for this drier?
The unit features 3/8-inch ODF (Sweat) connections, allowing for a standard braze-in installation on high-side liquid lines.

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.