Four Seasons 33314 A/C Filter Drier Receiver Desiccant Unit

The Four Seasons 33314 is a direct-fit A/C filter drier (receiver drier) engineered as a quality replacement for the original equipment unit in your vehicle's air conditioning system. Manufactured by Four Seasons, a brand under the SMP Temperature Control Division and the largest aftermarket mobile climate control parts supplier in the industry, this filter drier is built to restore proper A/C system function and protect critical components.

How It Works:

The A/C filter drier serves three essential roles in the refrigerant circuit: it acts as a particle filter to trap debris and contaminants, a moisture absorber using a high-quality desiccant bag, and a reservoir for excess liquid refrigerant. Contaminants captured by the drier cannot be removed by flushing alone, making replacement a critical step whenever the A/C system is opened or serviced.

Key Features:

• High-quality desiccant for effective moisture absorption throughout the system
• Quality welds for a durable, leak-free construction
• Necessary gaskets, O-rings, and seals included for straightforward installation
• Produced in an ISO/TS 16949 & ISO 14001 certified facility for consistent quality
• Engineered and tested to provide long-lasting, trouble-free operation
• Backed by over 50 years of mobile A/C experience

Important Service Note: Replacement of the filter drier is required to validate compressor warranty and must be performed any time the A/C system is opened or serviced. A leaking or open system can saturate the desiccant bag within hours, rendering the drier ineffective.