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The RLS 3051100600111 is a braze-free refrigerant copper press reducer coupling designed to join copper tubing of two different diameters without a torch. It connects 5/8-inch tubing to 3/8-inch tubing using a press-fit mechanical connection that eliminates open flame from the joining process. The one-piece construction creates a leak-proof, repeatable seal suited for refrigerant line work on HVAC and refrigeration systems. Licensed HVAC technicians install these fittings using a standard press tool, reducing connection time significantly compared to traditional brazing methods.
This reducer coupling is intended for refrigerant piping applications in both residential and light commercial HVAC and refrigeration systems. It is well suited for new installations and service work where torch use is restricted, impractical, or where faster connection methods are preferred. The press-fit design makes it particularly useful in tight spaces or occupied buildings where open-flame work presents a hazard or code restriction.
Designed as an OEM-style press-fit reducer coupling for refrigerant copper tubing in HVAC and refrigeration piping systems requiring a 5/8-inch to 3/8-inch reduction.
Installation should be performed by a licensed HVAC or refrigeration technician using an approved press tool rated for refrigerant fittings. The refrigerant system must be fully recovered and the line depressurized before fitting installation. Verify tube ends are clean, deburred, and properly inserted to the depth mark before pressing. Follow all applicable mechanical and refrigeration codes, including ASHRAE and local jurisdictional requirements, when working on sealed refrigerant systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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