3/4 X 5/8 REF RED

Product Description:
The 3/4 x 5/8 reducing coupling is designed to connect 3/4-inch copper tubing to 5/8-inch copper tubing in a straight-line run. Commonly labeled “REF RED” (refrigeration reducer), it is used in HVAC and refrigeration applications where precise, leak-free connections are required.

Key Features:

• 3/4" x 5/8" reducing coupling
• Copper sweat (solder) connection ends
• Designed for refrigeration and HVAC systems (“REF RED”)
• High-quality copper for corrosion resistance and durability
• Smooth bore for efficient refrigerant flow
• Meets industry standards for HVAC piping

Typical Use:
Used in air conditioning and refrigeration systems to transition between different copper line sizes in liquid or suction lines, ensuring reliable, leak-free performance.