We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
1-800-397-1392
Today's Hours 10am - 6pm estMade for R410A systems, the DIY35-3858 coupler links two precharged line sets to extend coverage for larger rooms and keep older mini splits running smoothly.
Extended Installation Flexibility
With a 35-foot length, this line set allows the outdoor condenser and indoor air handler to be installed at greater distances while maintaining optimal system performance. This flexibility helps accommodate a variety of home layouts and installation scenarios.
Quick Connect DIY Installation
MRCOOL’s Quick Connect technology allows for a streamlined installation process by eliminating the need for vacuuming or specialized refrigerant handling equipment. The factory-sealed connections help ensure a secure and reliable link between system components.
Optimized for Larger Capacity Systems
Specifically designed for 24,000 and 36,000 BTU MRCOOL DIY systems, this line set supports proper refrigerant flow and efficient operation. The insulated copper tubing helps maintain thermal efficiency and long-term durability.
The MRCOOL DIY Quick Connect line set is backed by the manufacturer’s warranty to ensure dependable installation and long-term system reliability when used with compatible MRCOOL DIY components.