Description
Parker-Sporlan LLD 305S Liquid Line Filter Drier — 5/8″ ODF
The Parker-Sporlan 450255-001 LLD 305S is a high-performance liquid line filter drier engineered to protect refrigeration and air conditioning systems from the damaging effects of moisture, acid, and solid contaminants. Featuring a 5/8″ ODF (solder) connection, this filter drier is designed for straightforward field installation on liquid lines in a wide range of commercial and residential HVAC/R applications.
Why Use a Liquid Line Filter Drier?
Moisture and contaminants in a refrigerant circuit are among the leading causes of compressor failure, valve damage, and system inefficiency. The Parker-Sporlan LLD 305S acts as the system’s last line of defense — trapping moisture, acids, and particulates before they can reach sensitive components such as the TXV, metering device, and compressor.
Key Features
- Brand: Parker-Sporlan — a trusted name in refrigeration filtration and flow control
- Model: LLD 305S
- Connection size: 5/8″ ODF (solder) for secure, leak-free installation
- Liquid line design — optimized for installation on the high-pressure liquid side of the refrigerant circuit
- Removes moisture, acid, and solid particulates to protect system components
- Desiccant core provides high moisture capacity and excellent acid neutralization
- Suitable for use in a variety of refrigerants commonly used in HVAC/R systems
- Compact, durable construction for long service life
Typical Applications
- Residential and light commercial air conditioning systems
- Refrigeration equipment and walk-in coolers
- Heat pump systems
- New installations and system changeouts or retrofits
- Post-burnout cleanup installations (use appropriate burnout drier for severe contamination)
Installation Notes
Install the LLD 305S in the liquid line with the flow arrow pointing in the direction of refrigerant flow toward the metering device. Braze connections using standard refrigeration-grade brazing alloy. Always follow Parker-Sporlan installation guidelines and local codes. Replace the filter drier whenever the system is opened for service to maintain system integrity.
About Parker-Sporlan
Parker-Sporlan is a division of Parker Hannifin Corporation and is globally recognized as a leading manufacturer of refrigeration and air conditioning components, including filter driers, solenoid valves, thermostatic expansion valves, and sight glasses. HVAC/R professionals trust Parker-Sporlan products for their reliability, performance, and broad system compatibility.
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