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The TRADEPRO tp-2059 is a refrigerant hose adapter designed to convert a 1/4 inch male flare fitting (MFL) to a 5/16 inch female flare fitting (FFL). This type of adapter is a standard service fitting used in HVAC refrigeration work, allowing technicians to connect manifold gauge hoses or charging equipment across mismatched flare sizes. It is compact, single-piece hardware that lives in a technician's service bag and gets reached for when hose sets and service ports do not share the same flare diameter. Licensed HVAC technicians and refrigeration mechanics are the primary installers and users of this fitting.
This adapter suits residential and light commercial HVAC service applications where a 1/4 inch MFL connection on a manifold hose or gauge set must mate to a 5/16 inch FFL port on a system or piece of equipment. It is sold individually (each) and is a common addition to a technician's adapter kit for routine refrigerant recovery, evacuation, and charging procedures.
Designed as an OEM-style refrigerant service adapter for use with standard 1/4 inch MFL manifold hose sets requiring connection to 5/16 inch FFL service ports on HVAC and refrigeration equipment.
This fitting is installed by licensed HVAC technicians during refrigerant service procedures. Always recover refrigerant and depressurize the system or hose set before attaching or removing flare adapters to prevent refrigerant release. Hand-tighten flare fittings first, then snug with an appropriately sized flare wrench — do not overtighten, as flare seats can be damaged. Refrigerant handling must comply with applicable EPA Section 608 regulations.
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