If you’re tackling a DIY multi-zone mini split, Zone Air and MRCOOL are both...

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

If you’re tackling a DIY multi-zone mini split, Zone Air and MRCOOL are both solid picks for 2026. Zone Air has a slight edge with a 24 SEER2 rating, meaning it squeezes a bit more efficiency out of every watt compared to MRCOOL’s 23 SEER2