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

https://beaussmartwords.rivetgarden.com/posts/do-i-need-a-vacuum-pump-for-zone-air-or-mrcool-diy-systems

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