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

Vendor: MRCOOL DIY Direct Type: Non-DIY Line Set

4.5' (1201 Reviews)

20% Off

$201.00 ~~$251.25~~

Length: 25' Feet

25' Feet 35' Feet 50' Feet

This Product Is In-Stock! Ready to ship

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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.

Product Specifications

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Service & Support

Manufacturer Warranty

This product is covered by the manufacturer’s warranty against defects in materials and workmanship when installed and used according to the manufacturer’s guidelines. Warranty terms and coverage periods vary by manufacturer and product type. Please refer to the official product documentation or contact our team if you need help verifying warranty details.

Technical Support

Freedom HVAC Supply is staffed by people who actually understand HVAC systems. If you need help confirming compatibility, selecting the correct replacement part, or understanding installation requirements, our team is available to assist before and after your purchase.

Product Documentation

Installation manuals, specification sheets, wiring diagrams, and other technical documentation are available whenever possible. These resources help ensure proper installation, system compatibility, and safe operation of your equipment.

Parts Compatibility & Cross-Reference

Many HVAC parts replace or supersede older manufacturer part numbers. We provide replacement part numbers and compatible model information on product pages to help technicians and homeowners verify the correct component before ordering.

Replacement Parts & Accessories

Freedom HVAC Supply carries genuine replacement components and compatible accessories to keep HVAC systems running reliably. From control boards and motors to sensors, line sets, and installation accessories, we supply the parts professionals depend on.

Customer Support

If you have questions about product compatibility, warranty coverage, or installation considerations, our support team is ready to help. Our goal is to make sure you get the right part the first time so your system can get back up and running quickly.

FAQs About Our HVAC Products

Quick answers to questions about ordering, compatibility, and installation.

Ordering & Compatibility

1. Do you sell HVAC equipment to homeowners and DIY installers?

Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.

2. How do I know if this HVAC product is compatible with my system?

Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.

3. Can HVAC contractors purchase from Freedom HVAC Supply?

Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.

Installation & Support

1. Do HVAC systems require professional installation?

Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.

2. Can you help me choose the right HVAC system or part?

Yes. Our support team can assist with product selection based on your application, space, and installation needs.

3. Do you provide installation manuals or documentation?

Manufacturer installation guides and documentation are included or available upon request for most products.

Warranty & Shipping

1. Do HVAC products include a manufacturer warranty?

Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.

2. Do you ship HVAC equipment nationwide?

Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.

3. What should I know about freight delivery for HVAC equipment?

Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.

Need HVAC Help?

Get help with ordering, compatibility, or installation questions.