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The MA-LINE MA-SR422B is a refrigerant identification tag designed for systems charged with R-422B refrigerant. Printed in the standard medium blue legend color associated with R-422B, each tag provides a clear, at-a-glance indicator of the refrigerant type present in the system. These tags help technicians quickly identify refrigerant type before recovery, charging, or service work, reducing the risk of cross-contamination or incorrect refrigerant addition. Sold in a pack of 10, they are a practical consumable for HVAC service trucks and shop stock.
These refrigerant tags are used during installation and service of systems containing R-422B, a hydrochlorofluorocarbon blend commonly used as a retrofit or drop-in replacement in R-22 applications. They are appropriate for residential and light commercial HVAC equipment. Technicians attach them to equipment after charging or retrofitting to document the refrigerant type for future service visits.
Designed for use on HVAC systems charged with R-422B refrigerant, typically in residential and light commercial applications where R-22 retrofit work has been performed.
Refrigerant tags are applied by HVAC technicians as part of system documentation during charging or refrigerant retrofit procedures. Attach the tag in a visible location near the service ports or refrigerant access points. Always recover refrigerant per EPA Section 608 requirements before opening the system, and verify refrigerant type with proper testing equipment before adding any refrigerant to an existing system.
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