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Bard 6031-001 is an OEM valve core used in the refrigerant service port to help maintain a tight seal after gauges are removed, supporting proper system pressure and reducing the chance of slow leaks on Bard wall mounted and packaged HVAC equipment. If you are seeing oil residue at a Schrader fitting, losing charge over time, or you cannot hold vacuum during service, replacing the valve core is a common, low cost corrective step. Use the correct core tool and follow proper recovery and safety practices during service to prevent refrigerant loss and ensure a reliable seal in the service valve body.
* Orders less than $50 may incure a minimum order fee.