Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2; Zone Air, 23 SEER2....

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Comparing 2026 DIY mini splits? MRCOOL offers 24 SEER2; Zone Air, 23 SEER2. Choose MRCOOL for value above -15°F, or Zone Air Hyper Heat if you need heating down to -22°F.