Parker Bi-Flow / Reversible Filter-Drier • Model: BF-163S • Type: Bi-Flow (Reversible) for Heat Pumps • Connection: 3/8” ODF Solder • Item No: 450302-001 • Brand: Parker • Condition: New in original packaging Designed for use in heat pump systems, this Parker reversible filter-drier ensures effective moisture and acid removal while allowing refrigerant to flow in either direction.