If you’re planning a DIY multi-zone mini split in 2026, Zone Air and MRCOOL...

https://annamaid.com/what-are-the-downsides-of-not-self-installation-mini-splits-that-ship-empty-line-sets/

If you’re planning a DIY multi-zone mini split in 2026, Zone Air and MRCOOL each have solid benefits. Zone Air stands out with its cut-to-length line sets, which makes fitting tricky layouts in older plaster walls easier and cleaner