MRCOOL® Precharged Linesets for 5th Gen |
MRCOOL® DIY® Quick Connect® Line Sets
The Heart of the Do-It-Yourself Revolution
Our patented Quick Connect® Line Sets are what truly make a MRCOOL® system DIY. By eliminating the need for vacuuming, brazing, or specialized HVAC tools, these pre-charged lines allow you to complete a professional-grade installation in a fraction of the time.
The Only True DIY® System
While others claim ease of use, MRCOOL® offers the only residential HVAC system on the market specifically engineered for amateur installation. These line sets enable a completely "no-vac" setup, making professional comfort accessible to everyone.
Patented Innovation
Accept no imitations. Our Patent-Protected design ensures a 100% secure, leak-proof connection that is certified by Intertek and rated to 921 PSI, providing safety and reliability that simply cannot be matched by generic alternatives.
Pre-Charged with R-454B
Designed specifically for 5th Generation systems, these lines arrive factory-sealed and pre-charged with eco-friendly R-454B refrigerant, ensuring maximum efficiency and zero ozone depletion potential.
DIY Pro® Cable Included
Most 5th Gen line sets come equipped with the DIY Pro® Cable, providing a specialized, armored conduit that protects your electrical connections from weather, UV damage, and wildlife.
Kink-Resistant & Durable
Constructed with high-quality copper and wrapped in a 3/4" UV-protective insulation sleeve, these lines are built to be flexible enough for tight turns but tough enough to withstand harsh environments.
Extendable with Couplers
Standard lengths of 16, 25, 35, and 50 feet can be easily combined using MRCOOL® Coupler Kits, allowing you to reach up to 75 feet without losing your factory-sealed charge.
Quick Selection Guide
| Indoor Unit Size | Liquid Line | Suction Line |
|---|---|---|
| 6K / 9K / 12K BTU | 1/4" | 3/8" |
| 18K BTU | 1/4" | 1/2" |
| 24K / 36K BTU | 3/8" | 5/8" |
