The Parker 307S Gold Label Liquid Line Filter Drier provides high-capacity moisture and contaminant protection for commercial HVAC and refrigeration systems.
Its solid molded molecular-sieve core delivers strong moisture, acid, and particle-removal capacity while maintaining efficient refrigerant flow. An internal polyester sealing pad helps prevent refrigerant from bypassing the core and provides an additional level of filtration.
The 307S features solid copper 7/8-inch ODF solder connections for dependable brazed installation. Its steel shell has a corrosion-resistant epoxy coating designed for demanding refrigeration and air-conditioning applications.
Parker lists the Gold Label liquid-line series as compatible with HCFC, HFC, HFO, and R32-blend refrigerants, as well as mineral oil, alkylbenzene, and POE lubricants.
Key Features
- Genuine Parker Gold Label filter drier
- 7/8" ODF solder inlet and outlet connections
- Solid molded molecular-sieve core
- Removes moisture, acids, and solid contaminants
- Polyester pad helps prevent refrigerant bypass
- High filtration and water-removal capacity
- Solid copper fittings for easier brazing
- Corrosion-resistant epoxy-coated steel shell
- 650 PSIG maximum rated pressure
- UL listed
- Compatible with common HCFC, HFC, HFO, and R32-blend refrigerants
Parker publishes flow capacities at a 1 PSID pressure drop of approximately 20.15 tons with R-22, 18.18 tons with R-134a, 12.98 tons with R-404A/R-507, 19.32 tons with R-407C, and 19.67 tons with R-410A. Actual system selection should follow Parker’s application and sizing data.
Installation Note
Install the filter drier in the liquid line with refrigerant flowing in the direction indicated by the arrow on the shell. Protect the body and internal core from excessive brazing heat. Installation and sizing should be completed by a qualified HVAC or refrigeration technician.
