The MRCOOL® 4-5 Ton Pre-Charged M-Coil offers a fast, efficient, and eco-conscious solution for heating and cooling systems. Specifically designed for use with most R-454B systems having No-Vac® Quick Connect® line set or a flare to sweat connections, making it a versatile option for both replacements and new installations. Pre-charged with R-454B refrigerant, a next-generation, low-GWP refrigerant that meets current environmental standards while maintaining strong performance, sets this coil apart. By eliminating the need for field charging, this accessory speeds up installation, reduces the chance of error, and cuts down on labor—perfect for professionals looking for efficiency and homeowners wanting a quicker setup. Its compact design supports upflow, downflow, and horizontal installations, allowing it to fit seamlessly into various spaces. Features like dual front drain connections, built-in side drain pan on horizontal units, and an A2L leak detection sensor for added safety—makes installation and maintenance easy, no matter the orientation. Built with CoolGuard® aluminum coil technology, the unit resists corrosion and wear, helping it withstand years of use while maintaining performance. This durability ensures fewer maintenance concerns and longer-lasting comfort for homeowners. With a 10-year limited parts warranty, the MRCOOL® 4860-C Pre-Charged M-Coil delivers both peace of mind and long-term value. Whether you’re updating an existing system or installing something brand new, this coil offers the ideal blend of simplicity, efficiency, and reliability—ready to meet the demands of today’s homes.