Description
The Copeland EK303S (SKU 048211) is a high-performance liquid line filter drier engineered to protect refrigeration and air conditioning systems from moisture, acid, and particulate contamination. Designed for reliable field installation, this filter drier is an essential component in maintaining system efficiency and extending compressor life.
Key Features
- Model: EK303S — a trusted Copeland liquid line filter drier
- Connection type: 3/8″ sweat (ODF) for easy copper line installation
- Capacity: 30 cubic inch desiccant volume for effective moisture and acid removal
- Filtration rating: 20 micron to capture particulates and protect downstream components
- Maximum working pressure: 680 PSI for compatibility with a wide range of refrigerants and system pressures
- Bi-directional or uni-directional flow (per model design) for flexible installation
Application & Benefits
The Copeland EK303S filter drier is ideal for use on the liquid line of residential and light commercial refrigeration and air conditioning systems. Its high-capacity desiccant core aggressively removes moisture and acid that can degrade compressor oil and damage system components. The 20-micron filtration screen captures weld slag, copper particles, and other debris, helping to ensure clean refrigerant flow throughout the system.
Specifications
- SKU: 048211
- Model: EK303S
- Brand: Copeland
- Connection Size: 3/8″ Sweat (ODF)
- Cubic Inch Capacity: 30 cu in
- Micron Rating: 20 micron
- Maximum Pressure: 680 PSI
- Line Type: Liquid Line







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