Copper Insulated HVAC Line Set – 3/8" x 3/4" | 25ft, 35ft, 50ft | For MRCOOL HyperHeat, VersaPro, Universal & Pro-Direct | Professional Installation

Copper Insulated HVAC Line Set – 3/8" x 3/4" | 25ft, 35ft, 50ft | For MRCOOL HyperHeat, VersaPro, Universal & Pro-Direct | Professional InstallationCopper Insulated HVAC Line Set 3 8" x 3 4" (25 ft, 35 ft, 50 ft) Upgrade or replace your refrigerant lines with this premium copper insulated HVAC line set, designed for non DIY, traditional professional installation. This line set is perfect for central ducted heating and cooling systems that require reliable, field ready copper tubing. Liquid Line: 3 8" Suction Line: 3 4" Available Lengths: 25 ft, 35 ft, or 50 ft Compatible With MRCOOL & Other Major

Copper Insulated HVAC Line Set – 3/8" x 3/4" (25 ft, 35 ft, 50 ft)

Upgrade or replace your refrigerant lines with this premium copper insulated HVAC line set, designed for non-DIY, traditional professional installation. This line set is perfect for central ducted heating and cooling systems that require reliable, field-ready copper tubing.

• Liquid Line: 3/8"
• Suction Line: 3/4"
• Available Lengths: 25 ft, 35 ft, or 50 ft

Compatible With MRCOOL & Other Major HVAC Brands

This professional-grade line set can be used with:

• MRCOOL HyperHeat central ducted systems
• MRCOOL VersaPro central ducted systems
• MRCOOL Universal Series central ducted systems
• MRCOOL Pro-Direct central ducted systems

It is also compatible with any HVAC brand that uses 3/8" x 3/4" line sizes for central air conditioners and heat pumps.

Multi-Refrigerant Compatible

Built for flexibility in the field, this copper line set is suitable for use with:

• R410A
• R22
• R32
• R454B

Whether you're working with legacy equipment or installing a modern high-efficiency system, this line set is ready for the job.

Non-DIY, Professional Installation Required

These line sets are designed for traditional HVAC installation and are intended for use by licensed professionals only.

• Not flared from the factory
• Will need to be brazed or flared on-site depending on your specific installation requirements
• Always have a licensed HVAC technician handle installation and refrigerant charging

Key Features & Benefits

• High-quality copper insulated line set for central ducted HVAC systems
• Compatible with MRCOOL HyperHeat, VersaPro, Universal, and Pro-Direct
• Works with most major brands using 3/8" x 3/4" line sizes
• Supports multiple refrigerants: R410A, R22, R32, R454B
• Available in 25 ft, 35 ft, and 50 ft lengths for flexible installation
• Ideal for system replacements, upgrades, and new professional installs

Choose MRCOOL DIY Direct for your next installation and enjoy the confidence of buying from the USA's most trusted HVAC dealer.