Industrial WD-304 Liquid Line Refrigerant Filter Drier

Description:

The Watsco WD-304 Liquid Line Refrigerant Filter Drier is used in refrigeration and air conditioning systems to remove moisture, acids, and contaminants from the refrigerant circuit, helping protect compressors and system components. Commonly installed in commercial HVAC equipment, refrigeration units, and condensing systems, this 1/2" flare filter drier promotes reliable operation and extends system life. Maintenance technicians, HVAC contractors, and OEM service providers use the Watsco WD-304 for replacement, retrofit, preventive maintenance, and refrigeration system repairs.

Applications:

The Watsco WD-304 Liquid Line Refrigerant Filter Drier is commonly used in residential and commercial air conditioning systems, walk-in coolers, refrigerated display cases, heat pumps, condensing units, and industrial refrigeration equipment. The Watsco WD-304 is designed for liquid line installation with 1/2" flare connections, providing effective moisture and contaminant removal to help maintain efficient refrigerant circulation and protect critical system components.

Technical Specifications:

• Brand: Watsco
• Part Number: WD-304
• Product Type: Liquid Line Refrigerant Filter Drier
• Connection Size: 1/2 in. Flare
• Connection Type: SAE Flare
• Installation Location: Liquid Line
• Function: Removes moisture, acids, and contaminants from refrigerant systems
• Compatible With: Air conditioning and refrigeration applications
• Application: Compressor and system protection
• Designed for HVAC and refrigeration service and maintenance
• Suitable for replacement and retrofit installations
• Heavy-duty sealed construction for dependable operation

Common Replacements:

• Watsco WD-303 Liquid Line Filter Drier
• Sporlan C-304-S Filter Drier
• Emerson EK-304S Liquid Line Filter Drier