Quick answers to questions about ordering, compatibility, and installation.
Upgrade or extend your MRCOOL DIY 5th Gen mini split system with our genuine MRCOOL Gen 5 Pre-Charged Mini Split Line Set – R-454B. Designed for fast, clean, and easy installation, each line set is pre-charged with R-454B refrigerant and comes ready to connect to compatible MRCOOL air handlers and condensers without the need for special tools, vacuum pumps, or refrigerant gauges.
Whether you're installing a single zone or configuring a multi-zone setup, these pre-charged, quick connect line sets make the job simple and DIY-friendly. Our line set options range from standard 16 ft and 25 ft sizes (which include control wire built into the air handler) to longer combinations using our MRCOOL coupler kits and extended control wire. All sets are designed for MRCOOL's 5th Generation DIY mini splits using the environmentally friendly R-454B refrigerant.
Compatible with all MRCOOL 5th Gen DIY mini split systems designed for R-454B refrigerant, including wall-mounted air handlers and multi-zone condensers. Please check your system requirements and match the correct lengths and air handler pairing for optimal performance.
With MRCOOL’s patented DIY technology, our pre-charged line sets allow homeowners to install their own HVAC systems safely and confidently. No licensed technician is required for setup when following the provided instructions, making this a cost-effective and stress-free solution for any home.
Want to learn more about pre-charged line sets? Click here to read our detailed guide on how MRCOOL DIY pre-charged systems work and why they save you money.
| Length | Includes | Refrigerant | DIY Installation | Vacuum Required | Couplers | Control Wire |
|---|---|---|---|---|---|---|
| 16 ft | Line Set Only | R-454B | Yes | No | No | Built into Air Handler |
| 25 ft | Line Set Only | R-454B | Yes | No | No | Built into Air Handler |
| 35 ft | Line Set + Control Wire | R-454B | Yes | No | No | Included |
| 41 ft | 25' + 16' + Couplers + Wire | R-454B | Yes | No | Yes | Included |
| 50 ft | Line Set + Control Wire | R-454B | Yes | No | No | Included |
| 60 ft | 25' + 35' + Couplers + Wire | R-454B | Yes | No | Yes | Included |
| 66 ft | 50' + 25' + Couplers + Wire | R-454B | Yes | No | Yes | Included |
| 70 ft | 35' + 35' + Couplers + Wire | R-454B | Yes | No | Yes | Included |
| 75 ft | 50' + 25' + Couplers + Wire | R-454B | Yes | No | Yes | Included |
Quick answers to questions about ordering, compatibility, and installation.
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.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
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