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50FT Refrigerant Copper Line Set – 3/8″ & 3/4″ with ArmaFlex Insulation

$349.23 on Amazon.com (as of October 15, 2026, 9:41 PM EST) View details ↗

A high-quality 50-foot copper refrigerant line set designed for professional HVAC, AC, and heat pump installations. This complete kit includes one 3/8-inch liquid line and one 3/4-inch suction line, both made from durable copper tubing. The set also comes with an 8-piece ArmaFlex insulation kit, featuring eight 6-foot sections that provide a total of 48 feet of insulation for the 3/4-inch suction line, helping to maintain efficiency and reduce energy loss during operation.

The copper tubing is supplied bare and ready for installation, while the insulation is packaged separately for easy application on-site. This configuration ensures flexibility during setup, allowing installers to cut, measure, and insulate the lines precisely as needed. Both ends of the copper tubing are capped to protect against dirt, debris, and moisture during storage and transport, ensuring the integrity of the refrigerant lines until they reach the installation site.

Total Length (Copper Tubing)50 FT (3/8″ liquid line + 3/4″ suction line)
Insulation Coverage48 FT (8 x 6 FT ArmaFlex sections for 3/4″ suction line)
MaterialCopper tubing with ArmaFlex foam insulation
Line Sizes3/8″ liquid line & 3/4″ suction line
ProtectionCapped ends on copper tubing
Insulation TypeArmaFlex foam insulation
How do I determine if this line set is compatible with my HVAC system?
Check your equipment’s refrigerant line specifications for required diameters—this set includes 3/8″ and 3/4″ copper lines, so verify those match your system’s needs before ordering.
Can the insulation be applied before or after the tubing is installed?
The insulation is packaged separately and should be applied during installation for a secure fit, ensuring no gaps that could compromise energy efficiency.
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