Emerson Alco 048212 Filter Drier

The Emerson Alco 048212 (Model EK-304) is a premium liquid line filter drier designed for high-performance moisture and acid removal in commercial refrigeration and air conditioning systems. Engineered with a 30 cubic inch desiccant bead volume, this unit utilizes a high-density 20-micron filtration pad to capture solid contaminants and prevent expansion valve plugging. Rated for a 680 PSI maximum working pressure, the EK-304 is compatible with HFC, HCFC, CFC, and CO2 (subcritical) refrigerants, making it a versatile choice for field service and preventative maintenance. This specific model features 1/2" flare connections for secure, leak-proof installation without the need for brazing. As the technician-preferred direct replacement for 450253-001 and 033000-304, it ensures seamless compatibility when servicing older equipment. The solid core desiccant blend provides superior moisture capacity and acid neutralization, protecting compressors from premature failure due to chemical breakdown or debris. For contractors managing HVAC system protection, the EK series offers the industry standard in low pressure drop performance and system cleanliness.

• High-Efficiency Filtration: 20-micron internal filtration prevents debris from entering the TXV or capillary tubes.
• Optimal Desiccant Blend: Specially formulated to provide maximum moisture and acid adsorption in liquid line refrigeration circuits.
• Shock Resistant: Buffered desiccant bead design minimizes internal abrasion and maintains structural integrity under high-vibration conditions.
• Corrosion Resistance: Durable epoxy powder paint finish protects the steel shell from environmental degradation in demanding mechanical rooms.

Is the EK-304 compatible with POE oils?
Yes, the EK series is fully compatible with POE, mineral, and alkylbenzene lubricants, making it suitable for modern HFC refrigerant retrofits.

Can this filter drier be used on suction lines?
No, this is a dedicated liquid line filter drier designed for high-side installation. For suction side protection, a dedicated suction line drier with lower pressure drop characteristics should be utilized.

What is the proper flow direction for the Emerson EK-304?
The unit is unidirectional to ensure proper filtration through the internal pad; always confirm flow orientation by following the arrow stamped on the 048212 filter drier shell.

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.