Hermetic filter dryer for liquid line, Connections: 7/8 inch ODF (Outside Diameter Female), solder connections., Internal Volume: 30 cubic inches (approx. 500 cm3)., Maximum Operating Pressure: 680 PSI (approx. 46.8 bar)., Refrigerant Compatibility: Compatible with HFC and HCFC refrigerants, including R-134a, R-404A, R-507, R-410A, R-22, etc.