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    • Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C
    • Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C
    • Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C
    • Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C
    • Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C
    • Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C
    • Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C
    Sale!

    Couplers & Control Wire Only - FOR 24k OR 36k AIR HANDLERS MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C

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    Sale Price $271.00 Regular Price $338.75

    This Product Is In-Stock! Ready to ship

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    MRCOOL DIY Couplers and Control Wire Kit for Line Set Extension

    This kit includes only the necessary Couplers and Control Wire to extend your MRCOOL line set for longer installations. Please note that you will need to purchase an additional pre-filled line set separately to extend the refrigerant lines.

    When your installation requires more length than a standard MRCOOL DIY® QUICK CONNECT® LINE SET, you can combine two standard line sets using this DIY® Coupler Kit. The couplers enable you to seamlessly extend the line sets to meet your installation needs.

    Key Features:

    • Coupler Extension Solution: Designed to connect two pre-charged line sets to extend the total line length, ensuring compatibility with MRCOOL DIY systems.
    • Control Wire Included: The kit comes with 75 feet of MC5 Pro Cable, providing a continuous and reliable electrical connection between your indoor and outdoor units.
    • Easy Installation: Simply disconnect the existing 25-foot cable or wire from your indoor unit and replace it with the 75-foot Pro Cable included in this kit.

    Important Notes:

    • Pre-Filled Line Set Required: This kit includes only the couplers and control wire. To extend your refrigerant lines, you will need to purchase an additional pre-filled line set (available in 25' and 50' lengths).
    • Maximum Length: The total length for any MRCOOL multi-zone system must not exceed 75 feet per zone to ensure optimal performance.

    Kit Contents:

    • DIYCOUPLER-38 and DIYCOUPLER-58: These couplers are used to connect two line sets together.
    • 75' MC5 Pro Cable: Provides an uninterrupted connection between the indoor air handler and the outdoor condenser, replacing the standard 25-foot cable for longer installations.

    This kit is perfect for extending the length of your MRCOOL DIY® line sets, making it an essential accessory for larger installation projects that require more than the standard 25-foot length.

    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.

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