News
News
MRCOOL DIY Multi-Zone Line Set Guide: Sizes, Lengths, Coupler Kits & R-454B Compatibility
Learn how to choose MRCOOL DIY 5th Gen R-454B line sets. Compare line sizes, 16–50 ft factory lengths, extensions up to 75 ft with compatible DIY Quick Connect Coupler Kits, communication cable and Multi-Zone planning.
Read moreMRCOOL Line Set Installation Guide: Should You Route the Line Set Left, Right, or Straight Out the Back?
Should your MRCOOL line set exit the left side, right side, or straight out the back? Learn the pros, cons, installation tips, and why rear routing is usually the best choice for mini split performance and reliability.
Read more
Welcome to our store
Welcome to our store
Welcome to our store